diff --git a/Casks/font-abeezee.rb b/Casks/font-abeezee.rb
index 260b6c6ec38f..9ed0f31f432f 100644
--- a/Casks/font-abeezee.rb
+++ b/Casks/font-abeezee.rb
@@ -1,6 +1,6 @@
 class FontAbeezee < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/abeezee',
diff --git a/Casks/font-aboriginal-sans.rb b/Casks/font-aboriginal-sans.rb
index 84d442e021f0..86c67609b413 100644
--- a/Casks/font-aboriginal-sans.rb
+++ b/Casks/font-aboriginal-sans.rb
@@ -1,5 +1,5 @@
 class FontAboriginalSans < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.languagegeek.com/font/AboriginalSans.zip'
diff --git a/Casks/font-aboriginal-serif.rb b/Casks/font-aboriginal-serif.rb
index f8992d50c6ab..79144742ea58 100644
--- a/Casks/font-aboriginal-serif.rb
+++ b/Casks/font-aboriginal-serif.rb
@@ -1,5 +1,5 @@
 class FontAboriginalSerif < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '9.606'
   # sha256 '04e8548af9a7633f26439be61ba7cf04577361537ca4eaa7471279325680c7dd'
diff --git a/Casks/font-adinatha-tamil-brahmi.rb b/Casks/font-adinatha-tamil-brahmi.rb
index 5feafaa3ad79..9e3b2a736d06 100644
--- a/Casks/font-adinatha-tamil-brahmi.rb
+++ b/Casks/font-adinatha-tamil-brahmi.rb
@@ -1,5 +1,5 @@
 class FontAdinathaTamilBrahmi < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.virtualvinodh.com/download/Adinatha-Tamil-Brahmi.zip'
diff --git a/Casks/font-advent-pro.rb b/Casks/font-advent-pro.rb
index 1705f759d3b8..dd5839857d46 100644
--- a/Casks/font-advent-pro.rb
+++ b/Casks/font-advent-pro.rb
@@ -1,6 +1,6 @@
 class FontAdventPro < Cask
   # version '2.003'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/adventpro',
diff --git a/Casks/font-aegean.rb b/Casks/font-aegean.rb
index a2fe88ddc0d2..95d42eed5d69 100644
--- a/Casks/font-aegean.rb
+++ b/Casks/font-aegean.rb
@@ -1,5 +1,5 @@
 class FontAegean < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://users.teilar.gr/~g1951d/Aegean.zip'
diff --git a/Casks/font-aegyptus.rb b/Casks/font-aegyptus.rb
index fdfa62084c96..d8e2f4527f7f 100644
--- a/Casks/font-aegyptus.rb
+++ b/Casks/font-aegyptus.rb
@@ -1,5 +1,5 @@
 class FontAegyptus < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://users.teilar.gr/~g1951d/Aegyptus.zip'
diff --git a/Casks/font-aileron.rb b/Casks/font-aileron.rb
index ebd04fec9e02..15265747b99e 100644
--- a/Casks/font-aileron.rb
+++ b/Casks/font-aileron.rb
@@ -1,5 +1,5 @@
 class FontAileron < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://dotcolon.net/DL/font/aileron.zip'
diff --git a/Casks/font-akkadian.rb b/Casks/font-akkadian.rb
index a1db6d756c29..9c2c8b0727aa 100644
--- a/Casks/font-akkadian.rb
+++ b/Casks/font-akkadian.rb
@@ -1,5 +1,5 @@
 class FontAkkadian < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://users.teilar.gr/~g1951d/Akkadian.zip'
diff --git a/Casks/font-akshar-unicode.rb b/Casks/font-akshar-unicode.rb
index 78efb09fb795..e8fa015362f8 100644
--- a/Casks/font-akshar-unicode.rb
+++ b/Casks/font-akshar-unicode.rb
@@ -1,5 +1,5 @@
 class FontAksharUnicode < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.kamban.com.au/fonts/freefonts.zip'
diff --git a/Casks/font-alef.rb b/Casks/font-alef.rb
index ffa4c9586bf3..f1ea49f1b1dd 100644
--- a/Casks/font-alef.rb
+++ b/Casks/font-alef.rb
@@ -1,6 +1,6 @@
 class FontAlef < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/alef',
diff --git a/Casks/font-alegreya-sans-sc.rb b/Casks/font-alegreya-sans-sc.rb
index a7a369826af8..f5bb4a0afcf0 100644
--- a/Casks/font-alegreya-sans-sc.rb
+++ b/Casks/font-alegreya-sans-sc.rb
@@ -1,6 +1,6 @@
 class FontAlegreyaSansSc < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/alegreyasanssc',
diff --git a/Casks/font-alegreya-sans.rb b/Casks/font-alegreya-sans.rb
index c63273ce5c3a..041363bba0c3 100644
--- a/Casks/font-alegreya-sans.rb
+++ b/Casks/font-alegreya-sans.rb
@@ -1,6 +1,6 @@
 class FontAlegreyaSans < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/alegreyasans',
diff --git a/Casks/font-alegreya-sc.rb b/Casks/font-alegreya-sc.rb
index 9a881a7f8cff..4f2a54c7e6a7 100644
--- a/Casks/font-alegreya-sc.rb
+++ b/Casks/font-alegreya-sc.rb
@@ -1,6 +1,6 @@
 class FontAlegreyaSc < Cask
   # version '1.003'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/alegreyasc',
diff --git a/Casks/font-alegreya.rb b/Casks/font-alegreya.rb
index 8749cf27357b..cb89f529c8fd 100644
--- a/Casks/font-alegreya.rb
+++ b/Casks/font-alegreya.rb
@@ -1,6 +1,6 @@
 class FontAlegreya < Cask
   # version '1.003'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/alegreya',
diff --git a/Casks/font-aleo.rb b/Casks/font-aleo.rb
index 19fa0892ae60..eb2f10ec7d35 100644
--- a/Casks/font-aleo.rb
+++ b/Casks/font-aleo.rb
@@ -1,5 +1,5 @@
 class FontAleo < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://fontfabric.com/downfont/aleo.zip'
diff --git a/Casks/font-allan.rb b/Casks/font-allan.rb
index 053b5c355ad5..dd82eeb7f14d 100644
--- a/Casks/font-allan.rb
+++ b/Casks/font-allan.rb
@@ -1,6 +1,6 @@
 class FontAllan < Cask
   # version '1.004'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/allan',
diff --git a/Casks/font-almendra-sc.rb b/Casks/font-almendra-sc.rb
index 16bee760a024..91247f1389a1 100644
--- a/Casks/font-almendra-sc.rb
+++ b/Casks/font-almendra-sc.rb
@@ -1,6 +1,6 @@
 class FontAlmendraSc < Cask
   # version '1.003'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/almendrasc',
diff --git a/Casks/font-almendra.rb b/Casks/font-almendra.rb
index 08bd908cfc65..0236263a0a2a 100644
--- a/Casks/font-almendra.rb
+++ b/Casks/font-almendra.rb
@@ -1,6 +1,6 @@
 class FontAlmendra < Cask
   # version '1.003'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/almendra',
diff --git a/Casks/font-amaranth.rb b/Casks/font-amaranth.rb
index b36564966d44..c33fb91c77d3 100644
--- a/Casks/font-amaranth.rb
+++ b/Casks/font-amaranth.rb
@@ -1,6 +1,6 @@
 class FontAmaranth < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/amaranth',
diff --git a/Casks/font-amatic-sc.rb b/Casks/font-amatic-sc.rb
index a75a41524228..0da8561cd3c2 100644
--- a/Casks/font-amatic-sc.rb
+++ b/Casks/font-amatic-sc.rb
@@ -1,6 +1,6 @@
 class FontAmaticSc < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/amaticsc',
diff --git a/Casks/font-amiri.rb b/Casks/font-amiri.rb
index de51aa9fd58c..f18163a40c81 100644
--- a/Casks/font-amiri.rb
+++ b/Casks/font-amiri.rb
@@ -1,6 +1,6 @@
 class FontAmiri < Cask
   # version '000.104'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/amiri',
diff --git a/Casks/font-analecta.rb b/Casks/font-analecta.rb
index 03bbc0382826..517a924abb62 100644
--- a/Casks/font-analecta.rb
+++ b/Casks/font-analecta.rb
@@ -1,5 +1,5 @@
 class FontAnalecta < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://users.teilar.gr/~g1951d/Analecta.zip'
diff --git a/Casks/font-andada.rb b/Casks/font-andada.rb
index 0e732077a843..93abbc50a35d 100644
--- a/Casks/font-andada.rb
+++ b/Casks/font-andada.rb
@@ -1,6 +1,6 @@
 class FontAndada < Cask
   # version '1.003'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/andada',
diff --git a/Casks/font-andagii.rb b/Casks/font-andagii.rb
index c1daf71dc954..800b070fc7e3 100644
--- a/Casks/font-andagii.rb
+++ b/Casks/font-andagii.rb
@@ -1,5 +1,5 @@
 class FontAndagii < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.i18nguy.com/unicode/andagii.zip',
diff --git a/Casks/font-anonymous-pro-for-powerline.rb b/Casks/font-anonymous-pro-for-powerline.rb
index e963a78b90b6..4b1ea3e69d93 100644
--- a/Casks/font-anonymous-pro-for-powerline.rb
+++ b/Casks/font-anonymous-pro-for-powerline.rb
@@ -1,5 +1,5 @@
 class FontAnonymousProForPowerline < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/Lokaltog/powerline-fonts/trunk/AnonymousPro',
diff --git a/Casks/font-arapey.rb b/Casks/font-arapey.rb
index 21f89da6d83c..bc2335c55b99 100644
--- a/Casks/font-arapey.rb
+++ b/Casks/font-arapey.rb
@@ -1,6 +1,6 @@
 class FontArapey < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/arapey',
diff --git a/Casks/font-archivo-narrow.rb b/Casks/font-archivo-narrow.rb
index 70c421a3964c..c4784abe34a8 100644
--- a/Casks/font-archivo-narrow.rb
+++ b/Casks/font-archivo-narrow.rb
@@ -1,6 +1,6 @@
 class FontArchivoNarrow < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/archivonarrow',
diff --git a/Casks/font-arimo.rb b/Casks/font-arimo.rb
index ba3a7f75e724..0d0fc267991f 100644
--- a/Casks/font-arimo.rb
+++ b/Casks/font-arimo.rb
@@ -1,6 +1,6 @@
 class FontArimo < Cask
   # version '1.23'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/arimo',
diff --git a/Casks/font-arvo.rb b/Casks/font-arvo.rb
index 88cd36adb651..2e0e9ebb4eb6 100644
--- a/Casks/font-arvo.rb
+++ b/Casks/font-arvo.rb
@@ -1,6 +1,6 @@
 class FontArvo < Cask
   # version '2.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/arvo',
diff --git a/Casks/font-asap.rb b/Casks/font-asap.rb
index 51715b9f6d01..b0e5d68c6c0d 100644
--- a/Casks/font-asap.rb
+++ b/Casks/font-asap.rb
@@ -1,6 +1,6 @@
 class FontAsap < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/asap',
diff --git a/Casks/font-asea.rb b/Casks/font-asea.rb
index f388a730c052..0bc18e90134d 100644
--- a/Casks/font-asea.rb
+++ b/Casks/font-asea.rb
@@ -1,5 +1,5 @@
 class FontAsea < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://users.teilar.gr/~g1951d/Asea.zip'
diff --git a/Casks/font-astloch.rb b/Casks/font-astloch.rb
index 47e28ebf251d..8cb9ca8fd9cc 100644
--- a/Casks/font-astloch.rb
+++ b/Casks/font-astloch.rb
@@ -1,6 +1,6 @@
 class FontAstloch < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/astloch',
diff --git a/Casks/font-asul.rb b/Casks/font-asul.rb
index fe5b0bd91d15..4bd7c1f74292 100644
--- a/Casks/font-asul.rb
+++ b/Casks/font-asul.rb
@@ -1,6 +1,6 @@
 class FontAsul < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/asul',
diff --git a/Casks/font-averia-libre.rb b/Casks/font-averia-libre.rb
index 0466d67c0a64..e4d761f626dc 100644
--- a/Casks/font-averia-libre.rb
+++ b/Casks/font-averia-libre.rb
@@ -1,6 +1,6 @@
 class FontAveriaLibre < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/averialibre',
diff --git a/Casks/font-averia-sans-libre.rb b/Casks/font-averia-sans-libre.rb
index d45656720f2c..d61a27113d59 100644
--- a/Casks/font-averia-sans-libre.rb
+++ b/Casks/font-averia-sans-libre.rb
@@ -1,6 +1,6 @@
 class FontAveriaSansLibre < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/averiasanslibre',
diff --git a/Casks/font-averia-serif-libre.rb b/Casks/font-averia-serif-libre.rb
index 04c947edcfd5..9909ebbdde8b 100644
--- a/Casks/font-averia-serif-libre.rb
+++ b/Casks/font-averia-serif-libre.rb
@@ -1,6 +1,6 @@
 class FontAveriaSerifLibre < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/averiaseriflibre',
diff --git a/Casks/font-babelstone-han.rb b/Casks/font-babelstone-han.rb
index 5b3a6dac4c37..160defa65cb8 100644
--- a/Casks/font-babelstone-han.rb
+++ b/Casks/font-babelstone-han.rb
@@ -1,6 +1,6 @@
 class FontBabelstoneHan < Cask
   # version '1.11'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://babelstone.co.uk/Fonts/BabelStoneHan.zip'
diff --git a/Casks/font-babelstone-modern.rb b/Casks/font-babelstone-modern.rb
index 4f771525c75f..fb6cb420ba84 100644
--- a/Casks/font-babelstone-modern.rb
+++ b/Casks/font-babelstone-modern.rb
@@ -1,5 +1,5 @@
 class FontBabelstoneModern < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '6.002'
   # sha256 '65cd40476a970f91a4813aded21beb8c4b6aa708c627e1cc3a7753d898fdb60a'
diff --git a/Casks/font-batak-unicode.rb b/Casks/font-batak-unicode.rb
index b4cbba1e4a0d..b9521931cd73 100644
--- a/Casks/font-batak-unicode.rb
+++ b/Casks/font-batak-unicode.rb
@@ -1,5 +1,5 @@
 class FontBatakUnicode < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://ulikozok.com/fontfiles/Batak-Unicode-Regular.otf'
diff --git a/Casks/font-battambang.rb b/Casks/font-battambang.rb
index a0c4ed3edfca..f578cbd63d1c 100644
--- a/Casks/font-battambang.rb
+++ b/Casks/font-battambang.rb
@@ -1,6 +1,6 @@
 class FontBattambang < Cask
   # version '2.00'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/battambang',
diff --git a/Casks/font-bebas-neue.rb b/Casks/font-bebas-neue.rb
index f90f8322ee11..748d376db91a 100644
--- a/Casks/font-bebas-neue.rb
+++ b/Casks/font-bebas-neue.rb
@@ -1,5 +1,5 @@
 class FontBebasNeue < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://fontfabric.com/downfont/bebas.zip'
diff --git a/Casks/font-benchnine.rb b/Casks/font-benchnine.rb
index 85208f40b3d1..68f43ae2ade6 100644
--- a/Casks/font-benchnine.rb
+++ b/Casks/font-benchnine.rb
@@ -1,6 +1,6 @@
 class FontBenchnine < Cask
   # version '1'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/benchnine',
diff --git a/Casks/font-bitter.rb b/Casks/font-bitter.rb
index b1fed864b485..e5c5a54e7234 100644
--- a/Casks/font-bitter.rb
+++ b/Casks/font-bitter.rb
@@ -1,5 +1,5 @@
 class FontBitter < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.huertatipografica.com/free_download/36'
diff --git a/Casks/font-buenard.rb b/Casks/font-buenard.rb
index cd4c2ef2ef4c..26818a9d40eb 100644
--- a/Casks/font-buenard.rb
+++ b/Casks/font-buenard.rb
@@ -1,6 +1,6 @@
 class FontBuenard < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/buenard',
diff --git a/Casks/font-cabin-condensed.rb b/Casks/font-cabin-condensed.rb
index 3afd3448effd..e6c0b835d023 100644
--- a/Casks/font-cabin-condensed.rb
+++ b/Casks/font-cabin-condensed.rb
@@ -1,6 +1,6 @@
 class FontCabinCondensed < Cask
   # version '1.006'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/cabincondensed',
diff --git a/Casks/font-cabin-sketch.rb b/Casks/font-cabin-sketch.rb
index c37e09e8f713..523c59c6bcaf 100644
--- a/Casks/font-cabin-sketch.rb
+++ b/Casks/font-cabin-sketch.rb
@@ -1,6 +1,6 @@
 class FontCabinSketch < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/cabinsketch',
diff --git a/Casks/font-cabin.rb b/Casks/font-cabin.rb
index 14663ba70013..e5535471bf52 100644
--- a/Casks/font-cabin.rb
+++ b/Casks/font-cabin.rb
@@ -1,6 +1,6 @@
 class FontCabin < Cask
   # version '1.006'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/cabin',
diff --git a/Casks/font-cantarell.rb b/Casks/font-cantarell.rb
index 457b44088461..720c589fd3c5 100644
--- a/Casks/font-cantarell.rb
+++ b/Casks/font-cantarell.rb
@@ -1,6 +1,6 @@
 class FontCantarell < Cask
   # version '001.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/cantarell',
diff --git a/Casks/font-canter.rb b/Casks/font-canter.rb
index 89145c33a2a0..c9d05c2cfcd1 100644
--- a/Casks/font-canter.rb
+++ b/Casks/font-canter.rb
@@ -1,5 +1,5 @@
 class FontCanter < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://fontfabric.com/downfont/canter.zip'
diff --git a/Casks/font-caudex.rb b/Casks/font-caudex.rb
index eb17dc12b0f3..32be328ad7db 100644
--- a/Casks/font-caudex.rb
+++ b/Casks/font-caudex.rb
@@ -1,6 +1,6 @@
 class FontCaudex < Cask
   # version '1.01'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/caudex',
diff --git a/Casks/font-changa-one.rb b/Casks/font-changa-one.rb
index b00fec0773b8..fb6972337811 100644
--- a/Casks/font-changa-one.rb
+++ b/Casks/font-changa-one.rb
@@ -1,6 +1,6 @@
 class FontChangaOne < Cask
   # version '1.003'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/changaone',
diff --git a/Casks/font-chau-philomene-one.rb b/Casks/font-chau-philomene-one.rb
index ced549ba7b87..4fc98ded87c5 100644
--- a/Casks/font-chau-philomene-one.rb
+++ b/Casks/font-chau-philomene-one.rb
@@ -1,6 +1,6 @@
 class FontChauPhilomeneOne < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/chauphilomeneone',
diff --git a/Casks/font-cherry-swash.rb b/Casks/font-cherry-swash.rb
index a7f9748801f3..6e005ad05664 100644
--- a/Casks/font-cherry-swash.rb
+++ b/Casks/font-cherry-swash.rb
@@ -1,6 +1,6 @@
 class FontCherrySwash < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/cherryswash',
diff --git a/Casks/font-chivo.rb b/Casks/font-chivo.rb
index 4d1ec80f2e7b..71b7536da13a 100644
--- a/Casks/font-chivo.rb
+++ b/Casks/font-chivo.rb
@@ -1,6 +1,6 @@
 class FontChivo < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/chivo',
diff --git a/Casks/font-cinzel-decorative.rb b/Casks/font-cinzel-decorative.rb
index e0c95d8c5291..4bd9cccd08a3 100644
--- a/Casks/font-cinzel-decorative.rb
+++ b/Casks/font-cinzel-decorative.rb
@@ -1,6 +1,6 @@
 class FontCinzelDecorative < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/cinzeldecorative',
diff --git a/Casks/font-cinzel.rb b/Casks/font-cinzel.rb
index 5599a4c8e4bc..e1420f1aa3e5 100644
--- a/Casks/font-cinzel.rb
+++ b/Casks/font-cinzel.rb
@@ -1,6 +1,6 @@
 class FontCinzel < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/cinzel',
diff --git a/Casks/font-coda.rb b/Casks/font-coda.rb
index 912e22e672f4..23c3c0d4a983 100644
--- a/Casks/font-coda.rb
+++ b/Casks/font-coda.rb
@@ -1,6 +1,6 @@
 class FontCoda < Cask
   # version '2.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/coda',
diff --git a/Casks/font-code.rb b/Casks/font-code.rb
index 24331f1c507f..d4c44cde9fdd 100644
--- a/Casks/font-code.rb
+++ b/Casks/font-code.rb
@@ -1,5 +1,5 @@
 class FontCode < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://fontfabric.com/downfont/code.zip'
diff --git a/Casks/font-codystar.rb b/Casks/font-codystar.rb
index 02879ccbf631..1ad059ba892f 100644
--- a/Casks/font-codystar.rb
+++ b/Casks/font-codystar.rb
@@ -1,6 +1,6 @@
 class FontCodystar < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/codystar',
diff --git a/Casks/font-comfortaa.rb b/Casks/font-comfortaa.rb
index d5184238b4fe..42009019d71d 100644
--- a/Casks/font-comfortaa.rb
+++ b/Casks/font-comfortaa.rb
@@ -1,6 +1,6 @@
 class FontComfortaa < Cask
   # version '2.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/comfortaa',
diff --git a/Casks/font-conakry.rb b/Casks/font-conakry.rb
index 74fd2731d1ea..1c3ed0c10fb1 100644
--- a/Casks/font-conakry.rb
+++ b/Casks/font-conakry.rb
@@ -1,5 +1,5 @@
 class FontConakry < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.evertype.com/fonts/nko/ConakryFont.zip'
diff --git a/Casks/font-constructium.rb b/Casks/font-constructium.rb
index 59fdadd5e11a..02c47a25eaf2 100644
--- a/Casks/font-constructium.rb
+++ b/Casks/font-constructium.rb
@@ -1,5 +1,5 @@
 class FontConstructium < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.kreativekorp.com/swdownload/fonts/xlang/constructium.zip'
diff --git a/Casks/font-content.rb b/Casks/font-content.rb
index da619f9337ce..fd188dca49e3 100644
--- a/Casks/font-content.rb
+++ b/Casks/font-content.rb
@@ -1,6 +1,6 @@
 class FontContent < Cask
   # version '6.00'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/content',
diff --git a/Casks/font-corben.rb b/Casks/font-corben.rb
index 4b214730357b..14192f2bfdf6 100644
--- a/Casks/font-corben.rb
+++ b/Casks/font-corben.rb
@@ -1,6 +1,6 @@
 class FontCorben < Cask
   # version '1.100'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/corben',
diff --git a/Casks/font-courier-prime.rb b/Casks/font-courier-prime.rb
index 8ad1b1e8ea62..dd2c0e9e2a5f 100644
--- a/Casks/font-courier-prime.rb
+++ b/Casks/font-courier-prime.rb
@@ -1,5 +1,5 @@
 class FontCourierPrime < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://quoteunquoteapps.com/downloads/courier-prime.zip'
diff --git a/Casks/font-cousine.rb b/Casks/font-cousine.rb
index aa7ea834c979..cf5887604636 100644
--- a/Casks/font-cousine.rb
+++ b/Casks/font-cousine.rb
@@ -1,6 +1,6 @@
 class FontCousine < Cask
   # version '1.21'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/cousine',
diff --git a/Casks/font-coustard.rb b/Casks/font-coustard.rb
index 8797981b9170..ecacb8b39d5e 100644
--- a/Casks/font-coustard.rb
+++ b/Casks/font-coustard.rb
@@ -1,6 +1,6 @@
 class FontCoustard < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/coustard',
diff --git a/Casks/font-cretan.rb b/Casks/font-cretan.rb
index d002949fe9b9..ccd2b4b3a90c 100644
--- a/Casks/font-cretan.rb
+++ b/Casks/font-cretan.rb
@@ -1,5 +1,5 @@
 class FontCretan < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://users.teilar.gr/~g1951d/Cretan.zip'
diff --git a/Casks/font-crete-round.rb b/Casks/font-crete-round.rb
index 1da0f66b3e34..9b159f91be58 100644
--- a/Casks/font-crete-round.rb
+++ b/Casks/font-crete-round.rb
@@ -1,6 +1,6 @@
 class FontCreteRound < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/creteround',
diff --git a/Casks/font-crimson-text.rb b/Casks/font-crimson-text.rb
index ab38ab3636a0..ee79057e6ee8 100644
--- a/Casks/font-crimson-text.rb
+++ b/Casks/font-crimson-text.rb
@@ -1,6 +1,6 @@
 class FontCrimsonText < Cask
   # version '0.13'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/crimsontext',
diff --git a/Casks/font-cuprum.rb b/Casks/font-cuprum.rb
index 7f1fa73c4eae..525a3357ef96 100644
--- a/Casks/font-cuprum.rb
+++ b/Casks/font-cuprum.rb
@@ -1,6 +1,6 @@
 class FontCuprum < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/cuprum',
diff --git a/Casks/font-cyprominoan.rb b/Casks/font-cyprominoan.rb
index 47a2532ac459..f46c9cd9f09f 100644
--- a/Casks/font-cyprominoan.rb
+++ b/Casks/font-cyprominoan.rb
@@ -1,5 +1,5 @@
 class FontCyprominoan < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://users.teilar.gr/~g1951d/CyproMinoan.zip'
diff --git a/Casks/font-dancing-script.rb b/Casks/font-dancing-script.rb
index 29612e1aca71..ba3a379c2691 100644
--- a/Casks/font-dancing-script.rb
+++ b/Casks/font-dancing-script.rb
@@ -1,6 +1,6 @@
 class FontDancingScript < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/dancingscript',
diff --git a/Casks/font-dejavu-sans-mono-for-powerline.rb b/Casks/font-dejavu-sans-mono-for-powerline.rb
index 2e95708a7d8a..21f6b9e646ec 100644
--- a/Casks/font-dejavu-sans-mono-for-powerline.rb
+++ b/Casks/font-dejavu-sans-mono-for-powerline.rb
@@ -1,5 +1,5 @@
 class FontDejavuSansMonoForPowerline < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/Lokaltog/powerline-fonts/trunk/DejaVuSansMono',
diff --git a/Casks/font-delius-unicase.rb b/Casks/font-delius-unicase.rb
index abdcd00649d4..0b9f1aabccaf 100644
--- a/Casks/font-delius-unicase.rb
+++ b/Casks/font-delius-unicase.rb
@@ -1,6 +1,6 @@
 class FontDeliusUnicase < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/deliusunicase',
diff --git a/Casks/font-dhyana.rb b/Casks/font-dhyana.rb
index 07d89d3242ac..0eec83ac1c80 100644
--- a/Casks/font-dhyana.rb
+++ b/Casks/font-dhyana.rb
@@ -1,6 +1,6 @@
 class FontDhyana < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/dhyana',
diff --git a/Casks/font-digohweli-old-do.rb b/Casks/font-digohweli-old-do.rb
index 1a194c4c2035..d9df21080b3d 100644
--- a/Casks/font-digohweli-old-do.rb
+++ b/Casks/font-digohweli-old-do.rb
@@ -1,5 +1,5 @@
 class FontDigohweliOldDo < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '1.615'
   # sha256 '3946991311f4fedac9f3cd44fe27c8beaa5c24c5ec8b2a3644ab3b7d1ff7ba6e'
diff --git a/Casks/font-disclaimer.rb b/Casks/font-disclaimer.rb
index a2fa90726f0e..e6b592d2f939 100644
--- a/Casks/font-disclaimer.rb
+++ b/Casks/font-disclaimer.rb
@@ -1,5 +1,5 @@
 class FontDisclaimer < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://fontfabric.com/downfont/disclaimer.zip'
diff --git a/Casks/font-domine.rb b/Casks/font-domine.rb
index 652932192ece..a28844097d5d 100644
--- a/Casks/font-domine.rb
+++ b/Casks/font-domine.rb
@@ -1,6 +1,6 @@
 class FontDomine < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/domine',
diff --git a/Casks/font-dosis.rb b/Casks/font-dosis.rb
index 1c48e6cf9b83..0105c0415f11 100644
--- a/Casks/font-dosis.rb
+++ b/Casks/font-dosis.rb
@@ -1,6 +1,6 @@
 class FontDosis < Cask
   # version '1.007'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/dosis',
diff --git a/Casks/font-droid-arabic-kufi.rb b/Casks/font-droid-arabic-kufi.rb
index 3957fa6667e1..bcd8ea2dae18 100644
--- a/Casks/font-droid-arabic-kufi.rb
+++ b/Casks/font-droid-arabic-kufi.rb
@@ -1,6 +1,6 @@
 class FontDroidArabicKufi < Cask
   # version '1.00'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/droidarabickufi',
diff --git a/Casks/font-droid-arabic-naskh.rb b/Casks/font-droid-arabic-naskh.rb
index f8b7c6877def..e0d1f6cfbd33 100644
--- a/Casks/font-droid-arabic-naskh.rb
+++ b/Casks/font-droid-arabic-naskh.rb
@@ -1,6 +1,6 @@
 class FontDroidArabicNaskh < Cask
   # version '1.00'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/droidarabicnaskh',
diff --git a/Casks/font-droid-sans-ethiopic.rb b/Casks/font-droid-sans-ethiopic.rb
index 157e7cb539a1..05ded0404757 100644
--- a/Casks/font-droid-sans-ethiopic.rb
+++ b/Casks/font-droid-sans-ethiopic.rb
@@ -1,6 +1,6 @@
 class FontDroidSansEthiopic < Cask
   # version '1.03'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/droidsansethiopic',
diff --git a/Casks/font-droid-sans-mono-for-powerline.rb b/Casks/font-droid-sans-mono-for-powerline.rb
index dd0124318833..8d7c316acfbc 100644
--- a/Casks/font-droid-sans-mono-for-powerline.rb
+++ b/Casks/font-droid-sans-mono-for-powerline.rb
@@ -1,5 +1,5 @@
 class FontDroidSansMonoForPowerline < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/Lokaltog/powerline-fonts/trunk/DroidSansMono',
diff --git a/Casks/font-droid-sans-mono.rb b/Casks/font-droid-sans-mono.rb
index 33a53bee0869..8b212fd61f58 100644
--- a/Casks/font-droid-sans-mono.rb
+++ b/Casks/font-droid-sans-mono.rb
@@ -1,6 +1,6 @@
 class FontDroidSansMono < Cask
   # version '1.00'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/droidsansmono',
diff --git a/Casks/font-droid-sans-tamil.rb b/Casks/font-droid-sans-tamil.rb
index 0e8c6fd26b66..ae213fcd56aa 100644
--- a/Casks/font-droid-sans-tamil.rb
+++ b/Casks/font-droid-sans-tamil.rb
@@ -1,6 +1,6 @@
 class FontDroidSansTamil < Cask
   # version '1.02'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/droidsanstamil',
diff --git a/Casks/font-droid-sans-thai.rb b/Casks/font-droid-sans-thai.rb
index 9cfb371faa08..8ad66def19b5 100644
--- a/Casks/font-droid-sans-thai.rb
+++ b/Casks/font-droid-sans-thai.rb
@@ -1,6 +1,6 @@
 class FontDroidSansThai < Cask
   # version '1.00'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/droidsansthai',
diff --git a/Casks/font-droid-sans.rb b/Casks/font-droid-sans.rb
index f82bb0d4ff8d..94a9c53a60a5 100644
--- a/Casks/font-droid-sans.rb
+++ b/Casks/font-droid-sans.rb
@@ -1,6 +1,6 @@
 class FontDroidSans < Cask
   # version '1.00'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/droidsans',
diff --git a/Casks/font-droid-serif-thai.rb b/Casks/font-droid-serif-thai.rb
index 07477d8402ef..62cb208d62d7 100644
--- a/Casks/font-droid-serif-thai.rb
+++ b/Casks/font-droid-serif-thai.rb
@@ -1,6 +1,6 @@
 class FontDroidSerifThai < Cask
   # version '1.00'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/droidserifthai',
diff --git a/Casks/font-droid-serif.rb b/Casks/font-droid-serif.rb
index a1cb09b12b34..f95a6f93c1be 100644
--- a/Casks/font-droid-serif.rb
+++ b/Casks/font-droid-serif.rb
@@ -1,6 +1,6 @@
 class FontDroidSerif < Cask
   # version '1.00'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/droidserif',
diff --git a/Casks/font-economica.rb b/Casks/font-economica.rb
index 493b38a51062..640f74fd689a 100644
--- a/Casks/font-economica.rb
+++ b/Casks/font-economica.rb
@@ -1,6 +1,6 @@
 class FontEconomica < Cask
   # version '1.101'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/economica',
diff --git a/Casks/font-eeyek-unicode.rb b/Casks/font-eeyek-unicode.rb
index cba566cbac18..123d731225c9 100644
--- a/Casks/font-eeyek-unicode.rb
+++ b/Casks/font-eeyek-unicode.rb
@@ -1,5 +1,5 @@
 class FontEeyekUnicode < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://tabish.freeshell.org/eeyek/eeyek.zip'
diff --git a/Casks/font-elsie-swash-caps.rb b/Casks/font-elsie-swash-caps.rb
index de841398ebff..b576c00489da 100644
--- a/Casks/font-elsie-swash-caps.rb
+++ b/Casks/font-elsie-swash-caps.rb
@@ -1,6 +1,6 @@
 class FontElsieSwashCaps < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/elsieswashcaps',
diff --git a/Casks/font-elsie.rb b/Casks/font-elsie.rb
index 4bb3596a43da..952d69883e9e 100644
--- a/Casks/font-elsie.rb
+++ b/Casks/font-elsie.rb
@@ -1,6 +1,6 @@
 class FontElsie < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/elsie',
diff --git a/Casks/font-enriqueta.rb b/Casks/font-enriqueta.rb
index 3cbf401e3e9c..4c00e8cb5c39 100644
--- a/Casks/font-enriqueta.rb
+++ b/Casks/font-enriqueta.rb
@@ -1,6 +1,6 @@
 class FontEnriqueta < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/enriqueta',
diff --git a/Casks/font-everson-mono.rb b/Casks/font-everson-mono.rb
index 6a046065617a..53ab83a429b6 100644
--- a/Casks/font-everson-mono.rb
+++ b/Casks/font-everson-mono.rb
@@ -1,5 +1,5 @@
 class FontEversonMono < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '6.201'
   # sha256 'd74a8d99342da41716a8ddf51536f79bf5394a6577450a5068be25b1c326b149'
diff --git a/Casks/font-exo.rb b/Casks/font-exo.rb
index 0258c9e06de3..43845787c9d7 100644
--- a/Casks/font-exo.rb
+++ b/Casks/font-exo.rb
@@ -1,6 +1,6 @@
 class FontExo < Cask
   # version '1.00'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/exo',
diff --git a/Casks/font-exo2.rb b/Casks/font-exo2.rb
index ba7a68611af4..ad60f06c88d9 100644
--- a/Casks/font-exo2.rb
+++ b/Casks/font-exo2.rb
@@ -1,6 +1,6 @@
 class FontExo2 < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/exo2',
diff --git a/Casks/font-expletus-sans.rb b/Casks/font-expletus-sans.rb
index 23b9046adfb2..721f8ca3f659 100644
--- a/Casks/font-expletus-sans.rb
+++ b/Casks/font-expletus-sans.rb
@@ -1,6 +1,6 @@
 class FontExpletusSans < Cask
   # version '7.029'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/expletussans',
diff --git a/Casks/font-fairfax.rb b/Casks/font-fairfax.rb
index 912dd04ea7e4..dbc059bacd49 100644
--- a/Casks/font-fairfax.rb
+++ b/Casks/font-fairfax.rb
@@ -1,5 +1,5 @@
 class FontFairfax < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.kreativekorp.com/swdownload/fonts/xlang/fairfax.zip'
diff --git a/Casks/font-fanwood-text.rb b/Casks/font-fanwood-text.rb
index f938602dc468..d88d3e22f385 100644
--- a/Casks/font-fanwood-text.rb
+++ b/Casks/font-fanwood-text.rb
@@ -1,6 +1,6 @@
 class FontFanwoodText < Cask
   # version '1.101'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/fanwoodtext',
diff --git a/Casks/font-flamenco.rb b/Casks/font-flamenco.rb
index f63b07336a12..ba2e8d7fb036 100644
--- a/Casks/font-flamenco.rb
+++ b/Casks/font-flamenco.rb
@@ -1,6 +1,6 @@
 class FontFlamenco < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/flamenco',
diff --git a/Casks/font-fondamento.rb b/Casks/font-fondamento.rb
index 34ac55227857..0fe7b750e148 100644
--- a/Casks/font-fondamento.rb
+++ b/Casks/font-fondamento.rb
@@ -1,6 +1,6 @@
 class FontFondamento < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/fondamento',
diff --git a/Casks/font-gentium-basic.rb b/Casks/font-gentium-basic.rb
index dfdf7b67ebc9..f4c4b9689fa0 100644
--- a/Casks/font-gentium-basic.rb
+++ b/Casks/font-gentium-basic.rb
@@ -1,6 +1,6 @@
 class FontGentiumBasic < Cask
   # version '1.100'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/gentiumbasic',
diff --git a/Casks/font-gentium-book-basic.rb b/Casks/font-gentium-book-basic.rb
index 35ceb8bad17b..0994322f5f01 100644
--- a/Casks/font-gentium-book-basic.rb
+++ b/Casks/font-gentium-book-basic.rb
@@ -1,6 +1,6 @@
 class FontGentiumBookBasic < Cask
   # version '1.100'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/gentiumbookbasic',
diff --git a/Casks/font-geo-sans-light.rb b/Casks/font-geo-sans-light.rb
index 8db5b5be5193..687c4c9e9e4e 100644
--- a/Casks/font-geo-sans-light.rb
+++ b/Casks/font-geo-sans-light.rb
@@ -1,5 +1,5 @@
 class FontGeoSansLight < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://moorstation.org/typoasis/designers/klein03/text02/pc/GeosansLight.zip'
diff --git a/Casks/font-geo.rb b/Casks/font-geo.rb
index 1a40c2366ff7..fcefff646bce 100644
--- a/Casks/font-geo.rb
+++ b/Casks/font-geo.rb
@@ -1,6 +1,6 @@
 class FontGeo < Cask
   # version '001.2'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/geo',
diff --git a/Casks/font-gfs-neohellenic.rb b/Casks/font-gfs-neohellenic.rb
index 6877a30051f9..699509e73890 100644
--- a/Casks/font-gfs-neohellenic.rb
+++ b/Casks/font-gfs-neohellenic.rb
@@ -1,6 +1,6 @@
 class FontGfsNeohellenic < Cask
   # version '1.0'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/gfsneohellenic',
diff --git a/Casks/font-glober.rb b/Casks/font-glober.rb
index 97a5f7bbf01e..becd86dd4cdf 100644
--- a/Casks/font-glober.rb
+++ b/Casks/font-glober.rb
@@ -1,5 +1,5 @@
 class FontGlober < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://fontfabric.com/downfont/glober.zip'
diff --git a/Casks/font-gorditas.rb b/Casks/font-gorditas.rb
index aeca5bf88f4e..3a4a590bb869 100644
--- a/Casks/font-gorditas.rb
+++ b/Casks/font-gorditas.rb
@@ -1,6 +1,6 @@
 class FontGorditas < Cask
   # version '001.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/gorditas',
diff --git a/Casks/font-gudea.rb b/Casks/font-gudea.rb
index 370f2eb6a3bc..1cbd9fae7682 100644
--- a/Casks/font-gudea.rb
+++ b/Casks/font-gudea.rb
@@ -1,6 +1,6 @@
 class FontGudea < Cask
   # version '1.003'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/gudea',
diff --git a/Casks/font-hanuman.rb b/Casks/font-hanuman.rb
index 37db6727ec42..ee1cbaac17ef 100644
--- a/Casks/font-hanuman.rb
+++ b/Casks/font-hanuman.rb
@@ -1,6 +1,6 @@
 class FontHanuman < Cask
   # version '2.00'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/hanuman',
diff --git a/Casks/font-idealist-sans.rb b/Casks/font-idealist-sans.rb
index a6b819bea0e1..fed5388d7d4a 100644
--- a/Casks/font-idealist-sans.rb
+++ b/Casks/font-idealist-sans.rb
@@ -1,5 +1,5 @@
 class FontIdealistSans < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://fontfabric.com/downfont/idealist.zip'
diff --git a/Casks/font-im-fell-double-pica.rb b/Casks/font-im-fell-double-pica.rb
index 688549bfc6b7..5f64d817e607 100644
--- a/Casks/font-im-fell-double-pica.rb
+++ b/Casks/font-im-fell-double-pica.rb
@@ -1,6 +1,6 @@
 class FontImFellDoublePica < Cask
   # version '3.00'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/imfelldoublepica',
diff --git a/Casks/font-im-fell-dw-pica.rb b/Casks/font-im-fell-dw-pica.rb
index 813c65bc8a27..3f3eaa638d6f 100644
--- a/Casks/font-im-fell-dw-pica.rb
+++ b/Casks/font-im-fell-dw-pica.rb
@@ -1,6 +1,6 @@
 class FontImFellDwPica < Cask
   # version '3.00'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/imfelldwpica',
diff --git a/Casks/font-im-fell-english.rb b/Casks/font-im-fell-english.rb
index ee937935c7a1..56e977dfa41a 100644
--- a/Casks/font-im-fell-english.rb
+++ b/Casks/font-im-fell-english.rb
@@ -1,6 +1,6 @@
 class FontImFellEnglish < Cask
   # version '3.00'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/imfellenglish',
diff --git a/Casks/font-im-fell-french-canon.rb b/Casks/font-im-fell-french-canon.rb
index da610b6a4530..80f39faab56d 100644
--- a/Casks/font-im-fell-french-canon.rb
+++ b/Casks/font-im-fell-french-canon.rb
@@ -1,6 +1,6 @@
 class FontImFellFrenchCanon < Cask
   # version '3.00'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/imfellfrenchcanon',
diff --git a/Casks/font-im-fell-great-primer.rb b/Casks/font-im-fell-great-primer.rb
index 64b974944b3c..55fc9d59481b 100644
--- a/Casks/font-im-fell-great-primer.rb
+++ b/Casks/font-im-fell-great-primer.rb
@@ -1,6 +1,6 @@
 class FontImFellGreatPrimer < Cask
   # version '3.00'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/imfellgreatprimer',
diff --git a/Casks/font-inconsolata-dz-for-powerline.rb b/Casks/font-inconsolata-dz-for-powerline.rb
index 93c7350dd6bf..cb3fd18cee56 100644
--- a/Casks/font-inconsolata-dz-for-powerline.rb
+++ b/Casks/font-inconsolata-dz-for-powerline.rb
@@ -1,5 +1,5 @@
 class FontInconsolataDzForPowerline < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://raw.github.com/Lokaltog/powerline-fonts/master/InconsolataDz/Inconsolata-dz%20for%20Powerline.otf'
diff --git a/Casks/font-inconsolata-dz.rb b/Casks/font-inconsolata-dz.rb
index ce775761f863..72a5792feac8 100644
--- a/Casks/font-inconsolata-dz.rb
+++ b/Casks/font-inconsolata-dz.rb
@@ -1,5 +1,5 @@
 class FontInconsolataDz < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://media.nodnod.net/Inconsolata-dz.otf.zip'
diff --git a/Casks/font-inconsolata-for-powerline.rb b/Casks/font-inconsolata-for-powerline.rb
index 2cb16a072564..ea722fc4d435 100644
--- a/Casks/font-inconsolata-for-powerline.rb
+++ b/Casks/font-inconsolata-for-powerline.rb
@@ -1,5 +1,5 @@
 class FontInconsolataForPowerline < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/Lokaltog/powerline-fonts/raw/master/Inconsolata/Inconsolata%20for%20Powerline.otf'
diff --git a/Casks/font-inconsolata-g-for-powerline.rb b/Casks/font-inconsolata-g-for-powerline.rb
index 09c677fc2584..7fcb0100b7f4 100644
--- a/Casks/font-inconsolata-g-for-powerline.rb
+++ b/Casks/font-inconsolata-g-for-powerline.rb
@@ -1,5 +1,5 @@
 class FontInconsolataGForPowerline < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/Lokaltog/powerline-fonts/trunk/Inconsolata-g',
diff --git a/Casks/font-inconsolata.rb b/Casks/font-inconsolata.rb
index d80a4c67175e..bdf52c254674 100644
--- a/Casks/font-inconsolata.rb
+++ b/Casks/font-inconsolata.rb
@@ -1,6 +1,6 @@
 class FontInconsolata < Cask
   # version '001.010'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://levien.com/type/myfonts/Inconsolata.otf'
diff --git a/Casks/font-inika.rb b/Casks/font-inika.rb
index 029802c0590e..142a28c5396f 100644
--- a/Casks/font-inika.rb
+++ b/Casks/font-inika.rb
@@ -1,6 +1,6 @@
 class FontInika < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/inika',
diff --git a/Casks/font-input-mono-for-powerline.rb b/Casks/font-input-mono-for-powerline.rb
index 7da229b097cb..c35f87a5ee48 100644
--- a/Casks/font-input-mono-for-powerline.rb
+++ b/Casks/font-input-mono-for-powerline.rb
@@ -1,5 +1,5 @@
 class FontInputMonoForPowerline < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/Lokaltog/powerline-fonts/trunk/InputMono',
diff --git a/Casks/font-input.rb b/Casks/font-input.rb
index df240a5e069a..79f6c30f3925 100644
--- a/Casks/font-input.rb
+++ b/Casks/font-input.rb
@@ -1,6 +1,5 @@
 class FontInput < Cask
-  # version 'latest'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   # the served font is built dynamically, according to the query string;
diff --git a/Casks/font-istok-web.rb b/Casks/font-istok-web.rb
index ebea76ef0034..07403fd59a60 100644
--- a/Casks/font-istok-web.rb
+++ b/Casks/font-istok-web.rb
@@ -1,6 +1,6 @@
 class FontIstokWeb < Cask
   # version '1.0'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/istokweb',
diff --git a/Casks/font-jomolhari.rb b/Casks/font-jomolhari.rb
index 4152fc6ab653..d1be41a5ee39 100644
--- a/Casks/font-jomolhari.rb
+++ b/Casks/font-jomolhari.rb
@@ -1,5 +1,5 @@
 class FontJomolhari < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.library.gov.bt/IT/download/Jomolhari.zip'
diff --git a/Casks/font-josefin-sans.rb b/Casks/font-josefin-sans.rb
index b098c1a63372..d2b486015518 100644
--- a/Casks/font-josefin-sans.rb
+++ b/Casks/font-josefin-sans.rb
@@ -1,6 +1,6 @@
 class FontJosefinSans < Cask
   # version '0'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/josefinsans',
diff --git a/Casks/font-josefin-slab.rb b/Casks/font-josefin-slab.rb
index 7750505cd3ac..97755dea0f08 100644
--- a/Casks/font-josefin-slab.rb
+++ b/Casks/font-josefin-slab.rb
@@ -1,6 +1,6 @@
 class FontJosefinSlab < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/josefinslab',
diff --git a/Casks/font-jsmath.rb b/Casks/font-jsmath.rb
index a374dc750c5f..bb5e2a8f9d61 100644
--- a/Casks/font-jsmath.rb
+++ b/Casks/font-jsmath.rb
@@ -1,5 +1,5 @@
 class FontJsmath < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.math.union.edu/~dpvc/jsmath/download/TeX-fonts-10.zip'
diff --git a/Casks/font-judson.rb b/Casks/font-judson.rb
index 1bf15c351f7e..cc40d7add455 100644
--- a/Casks/font-judson.rb
+++ b/Casks/font-judson.rb
@@ -1,6 +1,6 @@
 class FontJudson < Cask
   # version '20110429'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/judson',
diff --git a/Casks/font-jura.rb b/Casks/font-jura.rb
index 467d7b89b8a0..367319e65fb2 100644
--- a/Casks/font-jura.rb
+++ b/Casks/font-jura.rb
@@ -1,6 +1,6 @@
 class FontJura < Cask
   # version '2.5.1'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/jura',
diff --git a/Casks/font-kameron.rb b/Casks/font-kameron.rb
index 73ed0c5aeb43..c9cbb570b3e1 100644
--- a/Casks/font-kameron.rb
+++ b/Casks/font-kameron.rb
@@ -1,6 +1,6 @@
 class FontKameron < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/kameron',
diff --git a/Casks/font-kantumruy.rb b/Casks/font-kantumruy.rb
index 15dc4e9dddb5..4b321442fa30 100644
--- a/Casks/font-kantumruy.rb
+++ b/Casks/font-kantumruy.rb
@@ -1,6 +1,6 @@
 class FontKantumruy < Cask
   # version '1.20'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/kantumruy',
diff --git a/Casks/font-karla-tamil-inclined.rb b/Casks/font-karla-tamil-inclined.rb
index d588df65fa90..4512dab6ab08 100644
--- a/Casks/font-karla-tamil-inclined.rb
+++ b/Casks/font-karla-tamil-inclined.rb
@@ -1,6 +1,6 @@
 class FontKarlaTamilInclined < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/karlatamilinclined',
diff --git a/Casks/font-karla-tamil-upright.rb b/Casks/font-karla-tamil-upright.rb
index 9577a5100bd1..d3caa28c013c 100644
--- a/Casks/font-karla-tamil-upright.rb
+++ b/Casks/font-karla-tamil-upright.rb
@@ -1,6 +1,6 @@
 class FontKarlaTamilUpright < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/karlatamilupright',
diff --git a/Casks/font-karla.rb b/Casks/font-karla.rb
index 6433b4e41e26..73044f417825 100644
--- a/Casks/font-karla.rb
+++ b/Casks/font-karla.rb
@@ -1,6 +1,6 @@
 class FontKarla < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/karla',
diff --git a/Casks/font-kayases.rb b/Casks/font-kayases.rb
index 167abd0add77..5ebf174ca02a 100644
--- a/Casks/font-kayases.rb
+++ b/Casks/font-kayases.rb
@@ -1,5 +1,5 @@
 class FontKayases < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '001.000'
   # sha256 'b62b8e2a7ec95d476a1f1fb91c3329f376b221716308547be9bcc946f4de5923'
diff --git a/Casks/font-kibitaki.rb b/Casks/font-kibitaki.rb
index 50bb07a3036c..ca0ef9a39546 100644
--- a/Casks/font-kibitaki.rb
+++ b/Casks/font-kibitaki.rb
@@ -1,5 +1,5 @@
 class FontKibitaki < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/Koruri/kibitaki/archive/master.zip'
diff --git a/Casks/font-kisiska.rb b/Casks/font-kisiska.rb
index a248fbd31a4e..5c12a71e77b8 100644
--- a/Casks/font-kisiska.rb
+++ b/Casks/font-kisiska.rb
@@ -1,5 +1,5 @@
 class FontKisiska < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.languagegeek.com/font/kisiska.zip'
diff --git a/Casks/font-koruri.rb b/Casks/font-koruri.rb
index c7491e6ca405..00668ffb8de5 100644
--- a/Casks/font-koruri.rb
+++ b/Casks/font-koruri.rb
@@ -1,5 +1,5 @@
 class FontKoruri < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/Koruri/Koruri/archive/master.zip'
diff --git a/Casks/font-kreon.rb b/Casks/font-kreon.rb
index 88e8432a7b68..2a626a18bcba 100644
--- a/Casks/font-kreon.rb
+++ b/Casks/font-kreon.rb
@@ -1,6 +1,6 @@
 class FontKreon < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/kreon',
diff --git a/Casks/font-lato.rb b/Casks/font-lato.rb
index b15c018bdf20..8566b60ddf2e 100644
--- a/Casks/font-lato.rb
+++ b/Casks/font-lato.rb
@@ -1,5 +1,5 @@
 class FontLato < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.latofonts.com/download/Lato2OFL.zip'
diff --git a/Casks/font-lekton.rb b/Casks/font-lekton.rb
index 5d7151d1a15d..b95b23d75332 100644
--- a/Casks/font-lekton.rb
+++ b/Casks/font-lekton.rb
@@ -1,6 +1,6 @@
 class FontLekton < Cask
   # version '34.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/lekton',
diff --git a/Casks/font-liberation-mono-for-powerline.rb b/Casks/font-liberation-mono-for-powerline.rb
index ab110d87208a..9c56788c3e16 100644
--- a/Casks/font-liberation-mono-for-powerline.rb
+++ b/Casks/font-liberation-mono-for-powerline.rb
@@ -1,5 +1,5 @@
 class FontLiberationMonoForPowerline < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/Lokaltog/powerline-fonts/trunk/LiberationMono',
diff --git a/Casks/font-libre-baskerville.rb b/Casks/font-libre-baskerville.rb
index bd9377b147b8..d5957f2c7999 100644
--- a/Casks/font-libre-baskerville.rb
+++ b/Casks/font-libre-baskerville.rb
@@ -1,6 +1,6 @@
 class FontLibreBaskerville < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/librebaskerville',
diff --git a/Casks/font-life-savers.rb b/Casks/font-life-savers.rb
index b731a888dcaf..186ac299df09 100644
--- a/Casks/font-life-savers.rb
+++ b/Casks/font-life-savers.rb
@@ -1,6 +1,6 @@
 class FontLifeSavers < Cask
   # version '2.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/lifesavers',
diff --git a/Casks/font-linden-hill.rb b/Casks/font-linden-hill.rb
index 8408bc2276b4..bbd03ceecb65 100644
--- a/Casks/font-linden-hill.rb
+++ b/Casks/font-linden-hill.rb
@@ -1,6 +1,6 @@
 class FontLindenHill < Cask
   # version '1.202'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/lindenhill',
diff --git a/Casks/font-lobster-two.rb b/Casks/font-lobster-two.rb
index f5529fbbe6a9..2b8f6b863d14 100644
--- a/Casks/font-lobster-two.rb
+++ b/Casks/font-lobster-two.rb
@@ -1,6 +1,6 @@
 class FontLobsterTwo < Cask
   # version '1.006'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/lobstertwo',
diff --git a/Casks/font-lora.rb b/Casks/font-lora.rb
index e41f93c9912c..ee777d66c2ac 100644
--- a/Casks/font-lora.rb
+++ b/Casks/font-lora.rb
@@ -1,6 +1,6 @@
 class FontLora < Cask
   # version '1.014'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/lora',
diff --git a/Casks/font-lusitana.rb b/Casks/font-lusitana.rb
index 58ce5c854e4d..ad4e4e8bde1e 100644
--- a/Casks/font-lusitana.rb
+++ b/Casks/font-lusitana.rb
@@ -1,6 +1,6 @@
 class FontLusitana < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/lusitana',
diff --git a/Casks/font-magra.rb b/Casks/font-magra.rb
index 10bd2e29cda7..9b2e96472d05 100644
--- a/Casks/font-magra.rb
+++ b/Casks/font-magra.rb
@@ -1,6 +1,6 @@
 class FontMagra < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/magra',
diff --git a/Casks/font-marvel.rb b/Casks/font-marvel.rb
index 89688d9985e1..d7c43041abe2 100644
--- a/Casks/font-marvel.rb
+++ b/Casks/font-marvel.rb
@@ -1,6 +1,6 @@
 class FontMarvel < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/marvel',
diff --git a/Casks/font-masinahikan-dene.rb b/Casks/font-masinahikan-dene.rb
index 5a2df811ea8f..fabd3e52210c 100644
--- a/Casks/font-masinahikan-dene.rb
+++ b/Casks/font-masinahikan-dene.rb
@@ -1,5 +1,5 @@
 class FontMasinahikanDene < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '1.000'
   # sha256 'b9d4478d203f8bcb31de1afb39c4cdc28b3fdd7ec5e435fca7d45031a71d18c5'
diff --git a/Casks/font-masinahikan.rb b/Casks/font-masinahikan.rb
index f31c69cd3e53..c29177c8ec9d 100644
--- a/Casks/font-masinahikan.rb
+++ b/Casks/font-masinahikan.rb
@@ -1,5 +1,5 @@
 class FontMasinahikan < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '1.000'
   # sha256 '15b64154923017c85c0da6563479b1bd5bc6fe78d729ba085168ca3f208ccd4c'
diff --git a/Casks/font-mate.rb b/Casks/font-mate.rb
index 297447e9d5d7..42abcae9cd89 100644
--- a/Casks/font-mate.rb
+++ b/Casks/font-mate.rb
@@ -1,6 +1,6 @@
 class FontMate < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/mate',
diff --git a/Casks/font-maven-pro.rb b/Casks/font-maven-pro.rb
index 2502090cd535..2c94c24d8f12 100644
--- a/Casks/font-maven-pro.rb
+++ b/Casks/font-maven-pro.rb
@@ -1,6 +1,6 @@
 class FontMavenPro < Cask
   # version '1.003'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/mavenpro',
diff --git a/Casks/font-merienda.rb b/Casks/font-merienda.rb
index 4fdc6e921ebe..5b8e890d84c0 100644
--- a/Casks/font-merienda.rb
+++ b/Casks/font-merienda.rb
@@ -1,6 +1,6 @@
 class FontMerienda < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/merienda',
diff --git a/Casks/font-merriweather-sans.rb b/Casks/font-merriweather-sans.rb
index a772a40d50f3..21feaffde1f9 100644
--- a/Casks/font-merriweather-sans.rb
+++ b/Casks/font-merriweather-sans.rb
@@ -1,6 +1,6 @@
 class FontMerriweatherSans < Cask
   # version '1.003'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/merriweathersans',
diff --git a/Casks/font-merriweather.rb b/Casks/font-merriweather.rb
index 8599c58840b1..a1fbc3d26c7b 100644
--- a/Casks/font-merriweather.rb
+++ b/Casks/font-merriweather.rb
@@ -1,6 +1,6 @@
 class FontMerriweather < Cask
   # version '1.003'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/merriweather',
diff --git a/Casks/font-meslo-lg-for-powerline.rb b/Casks/font-meslo-lg-for-powerline.rb
index 4772d213e663..ecb344fd1897 100644
--- a/Casks/font-meslo-lg-for-powerline.rb
+++ b/Casks/font-meslo-lg-for-powerline.rb
@@ -1,5 +1,5 @@
 class FontMesloLgForPowerline < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/Lokaltog/powerline-fonts/trunk/Meslo',
diff --git a/Casks/font-miao-unicode.rb b/Casks/font-miao-unicode.rb
index 6cfd79fbbf3d..22ba14d25f85 100644
--- a/Casks/font-miao-unicode.rb
+++ b/Casks/font-miao-unicode.rb
@@ -1,5 +1,5 @@
 class FontMiaoUnicode < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/phjamr/MiaoUnicode/blob/master/MiaoUnicode-Regular.ttf?raw=true'
diff --git a/Casks/font-monda.rb b/Casks/font-monda.rb
index 26ddc45dad44..8098f8c40bc4 100644
--- a/Casks/font-monda.rb
+++ b/Casks/font-monda.rb
@@ -1,6 +1,6 @@
 class FontMonda < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/monda',
diff --git a/Casks/font-monoone.rb b/Casks/font-monoone.rb
index ed1e1084467d..2694d64267b6 100644
--- a/Casks/font-monoone.rb
+++ b/Casks/font-monoone.rb
@@ -1,6 +1,6 @@
 class FontMonoone < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/madmalik/monoOne/blob/master/monoOne.otf'
diff --git a/Casks/font-montserrat-alternates.rb b/Casks/font-montserrat-alternates.rb
index 86007a5229b3..6c7e561ec125 100644
--- a/Casks/font-montserrat-alternates.rb
+++ b/Casks/font-montserrat-alternates.rb
@@ -1,6 +1,6 @@
 class FontMontserratAlternates < Cask
   # version '2.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/montserratalternates',
diff --git a/Casks/font-montserrat-subrayada.rb b/Casks/font-montserrat-subrayada.rb
index 5d28e1b3467f..b8f1f1454b66 100644
--- a/Casks/font-montserrat-subrayada.rb
+++ b/Casks/font-montserrat-subrayada.rb
@@ -1,6 +1,6 @@
 class FontMontserratSubrayada < Cask
   # version '2.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/montserratsubrayada',
diff --git a/Casks/font-montserrat.rb b/Casks/font-montserrat.rb
index 1905e7970a33..bf84d22380c6 100644
--- a/Casks/font-montserrat.rb
+++ b/Casks/font-montserrat.rb
@@ -1,6 +1,6 @@
 class FontMontserrat < Cask
   # version '2.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/montserrat',
diff --git a/Casks/font-mountains-of-christmas.rb b/Casks/font-mountains-of-christmas.rb
index a13a427c1826..0037805c8d29 100644
--- a/Casks/font-mountains-of-christmas.rb
+++ b/Casks/font-mountains-of-christmas.rb
@@ -1,6 +1,6 @@
 class FontMountainsOfChristmas < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/mountainsofchristmas',
diff --git a/Casks/font-muktinarrow.rb b/Casks/font-muktinarrow.rb
index 82c948a9827a..818511a6f02a 100644
--- a/Casks/font-muktinarrow.rb
+++ b/Casks/font-muktinarrow.rb
@@ -1,5 +1,5 @@
 class FontMuktinarrow < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.omicronlab.com/download/fonts/muktinarrow.ttf'
diff --git a/Casks/font-muli.rb b/Casks/font-muli.rb
index c1a7093055d1..0186529edc50 100644
--- a/Casks/font-muli.rb
+++ b/Casks/font-muli.rb
@@ -1,6 +1,6 @@
 class FontMuli < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/muli',
diff --git a/Casks/font-musica.rb b/Casks/font-musica.rb
index f31569e1e70e..b18e1251858a 100644
--- a/Casks/font-musica.rb
+++ b/Casks/font-musica.rb
@@ -1,6 +1,6 @@
 class FontMusica < Cask
   # version '3.12'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://users.teilar.gr/~g1951d/Musica.zip'
diff --git a/Casks/font-nanumgothic.rb b/Casks/font-nanumgothic.rb
index 78e4bbdeb3d6..e901359c126a 100644
--- a/Casks/font-nanumgothic.rb
+++ b/Casks/font-nanumgothic.rb
@@ -1,6 +1,6 @@
 class FontNanumgothic < Cask
   # version '2.030'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/nanumgothic',
diff --git a/Casks/font-nanumgothiccoding.rb b/Casks/font-nanumgothiccoding.rb
index c9a4f310137a..58816b9d74f0 100644
--- a/Casks/font-nanumgothiccoding.rb
+++ b/Casks/font-nanumgothiccoding.rb
@@ -1,6 +1,6 @@
 class FontNanumgothiccoding < Cask
   # version '2.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/nanumgothiccoding',
diff --git a/Casks/font-nanummyeongjo.rb b/Casks/font-nanummyeongjo.rb
index 4d06d0eb23db..360afc9a09d6 100644
--- a/Casks/font-nanummyeongjo.rb
+++ b/Casks/font-nanummyeongjo.rb
@@ -1,6 +1,6 @@
 class FontNanummyeongjo < Cask
   # version '2.030'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/nanummyeongjo',
diff --git a/Casks/font-neuton.rb b/Casks/font-neuton.rb
index 0baf721d4633..5f0771b8346d 100644
--- a/Casks/font-neuton.rb
+++ b/Casks/font-neuton.rb
@@ -1,6 +1,6 @@
 class FontNeuton < Cask
   # version '1.42'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/neuton',
diff --git a/Casks/font-news-cycle.rb b/Casks/font-news-cycle.rb
index 5227f2b9c3da..2aae6dc511dd 100644
--- a/Casks/font-news-cycle.rb
+++ b/Casks/font-news-cycle.rb
@@ -1,6 +1,6 @@
 class FontNewsCycle < Cask
   # version '0.5'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/newscycle',
diff --git a/Casks/font-nexa.rb b/Casks/font-nexa.rb
index 8d6764c6178a..a4567c33d6b6 100644
--- a/Casks/font-nexa.rb
+++ b/Casks/font-nexa.rb
@@ -1,5 +1,5 @@
 class FontNexa < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://fontfabric.com/downfont/nexa.zip'
diff --git a/Casks/font-nobile.rb b/Casks/font-nobile.rb
index b8e59c733a17..46d35a95b670 100644
--- a/Casks/font-nobile.rb
+++ b/Casks/font-nobile.rb
@@ -1,6 +1,6 @@
 class FontNobile < Cask
   # version '001.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/nobile',
diff --git a/Casks/font-nokora.rb b/Casks/font-nokora.rb
index 1db3e20ca8b4..978e0e5febb4 100644
--- a/Casks/font-nokora.rb
+++ b/Casks/font-nokora.rb
@@ -1,6 +1,6 @@
 class FontNokora < Cask
   # version '1.3'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/nokora',
diff --git a/Casks/font-noticia-text.rb b/Casks/font-noticia-text.rb
index 3338f5a8ab73..6046e6524b4b 100644
--- a/Casks/font-noticia-text.rb
+++ b/Casks/font-noticia-text.rb
@@ -1,6 +1,6 @@
 class FontNoticiaText < Cask
   # version '1.003'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/noticiatext',
diff --git a/Casks/font-noto-kufi-arabic.rb b/Casks/font-noto-kufi-arabic.rb
index 852a17a88587..76e9d1119fdc 100644
--- a/Casks/font-noto-kufi-arabic.rb
+++ b/Casks/font-noto-kufi-arabic.rb
@@ -1,5 +1,5 @@
 class FontNotoKufiArabic < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoKufiArabic-hinted.zip'
diff --git a/Casks/font-noto-naskh-arabic.rb b/Casks/font-noto-naskh-arabic.rb
index 3da95b887f55..ef25d24b31dc 100644
--- a/Casks/font-noto-naskh-arabic.rb
+++ b/Casks/font-noto-naskh-arabic.rb
@@ -1,5 +1,5 @@
 class FontNotoNaskhArabic < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoNaskhArabic-unhinted.zip'
diff --git a/Casks/font-noto-sans-armenian.rb b/Casks/font-noto-sans-armenian.rb
index a7cb8607ba40..16b1fb069589 100644
--- a/Casks/font-noto-sans-armenian.rb
+++ b/Casks/font-noto-sans-armenian.rb
@@ -1,5 +1,5 @@
 class FontNotoSansArmenian < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansArmenian-hinted.zip'
diff --git a/Casks/font-noto-sans-avestan.rb b/Casks/font-noto-sans-avestan.rb
index cb9b411019ba..4e9b7c78f424 100644
--- a/Casks/font-noto-sans-avestan.rb
+++ b/Casks/font-noto-sans-avestan.rb
@@ -1,5 +1,5 @@
 class FontNotoSansAvestan < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansAvestan-unhinted.zip'
diff --git a/Casks/font-noto-sans-balinese.rb b/Casks/font-noto-sans-balinese.rb
index 8b96d8705e4c..3c74882369e4 100644
--- a/Casks/font-noto-sans-balinese.rb
+++ b/Casks/font-noto-sans-balinese.rb
@@ -1,5 +1,5 @@
 class FontNotoSansBalinese < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansBalinese-unhinted.zip'
diff --git a/Casks/font-noto-sans-bamum.rb b/Casks/font-noto-sans-bamum.rb
index 7a117c805741..fd8fb9a1a8a6 100644
--- a/Casks/font-noto-sans-bamum.rb
+++ b/Casks/font-noto-sans-bamum.rb
@@ -1,5 +1,5 @@
 class FontNotoSansBamum < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansBamum-unhinted.zip'
diff --git a/Casks/font-noto-sans-batak.rb b/Casks/font-noto-sans-batak.rb
index 30e73d75222a..a414bb8ca9da 100644
--- a/Casks/font-noto-sans-batak.rb
+++ b/Casks/font-noto-sans-batak.rb
@@ -1,5 +1,5 @@
 class FontNotoSansBatak < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansBatak-unhinted.zip'
diff --git a/Casks/font-noto-sans-bengali.rb b/Casks/font-noto-sans-bengali.rb
index 4a8d1c2f5a34..23c8cb7991bd 100644
--- a/Casks/font-noto-sans-bengali.rb
+++ b/Casks/font-noto-sans-bengali.rb
@@ -1,5 +1,5 @@
 class FontNotoSansBengali < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansBengali-hinted.zip'
diff --git a/Casks/font-noto-sans-brahmi.rb b/Casks/font-noto-sans-brahmi.rb
index 160098448764..31d9b0196c5f 100644
--- a/Casks/font-noto-sans-brahmi.rb
+++ b/Casks/font-noto-sans-brahmi.rb
@@ -1,5 +1,5 @@
 class FontNotoSansBrahmi < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansBrahmi-unhinted.zip'
diff --git a/Casks/font-noto-sans-buginese.rb b/Casks/font-noto-sans-buginese.rb
index 6d684a44be7a..1e82a2f27ea8 100644
--- a/Casks/font-noto-sans-buginese.rb
+++ b/Casks/font-noto-sans-buginese.rb
@@ -1,5 +1,5 @@
 class FontNotoSansBuginese < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansBuginese-unhinted.zip'
diff --git a/Casks/font-noto-sans-buhid.rb b/Casks/font-noto-sans-buhid.rb
index d0c615e35d4f..270afb6756ec 100644
--- a/Casks/font-noto-sans-buhid.rb
+++ b/Casks/font-noto-sans-buhid.rb
@@ -1,5 +1,5 @@
 class FontNotoSansBuhid < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansBuhid-unhinted.zip'
diff --git a/Casks/font-noto-sans-canadian-aboriginal.rb b/Casks/font-noto-sans-canadian-aboriginal.rb
index e00c1b2e92a4..56ffe50114e1 100644
--- a/Casks/font-noto-sans-canadian-aboriginal.rb
+++ b/Casks/font-noto-sans-canadian-aboriginal.rb
@@ -1,5 +1,5 @@
 class FontNotoSansCanadianAboriginal < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansCanadianAboriginal-unhinted.zip'
diff --git a/Casks/font-noto-sans-carian.rb b/Casks/font-noto-sans-carian.rb
index 95afaded872e..c7036e905a8f 100644
--- a/Casks/font-noto-sans-carian.rb
+++ b/Casks/font-noto-sans-carian.rb
@@ -1,5 +1,5 @@
 class FontNotoSansCarian < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansCarian-unhinted.zip'
diff --git a/Casks/font-noto-sans-cham.rb b/Casks/font-noto-sans-cham.rb
index 7b80df97216c..4b4b1b5c959a 100644
--- a/Casks/font-noto-sans-cham.rb
+++ b/Casks/font-noto-sans-cham.rb
@@ -1,5 +1,5 @@
 class FontNotoSansCham < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansCham-hinted.zip'
diff --git a/Casks/font-noto-sans-cherokee.rb b/Casks/font-noto-sans-cherokee.rb
index a94a564e9307..a100f73a21c7 100644
--- a/Casks/font-noto-sans-cherokee.rb
+++ b/Casks/font-noto-sans-cherokee.rb
@@ -1,5 +1,5 @@
 class FontNotoSansCherokee < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansCherokee-unhinted.zip'
diff --git a/Casks/font-noto-sans-coptic.rb b/Casks/font-noto-sans-coptic.rb
index a566829bd757..b1e48848021a 100644
--- a/Casks/font-noto-sans-coptic.rb
+++ b/Casks/font-noto-sans-coptic.rb
@@ -1,5 +1,5 @@
 class FontNotoSansCoptic < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansCoptic-unhinted.zip'
diff --git a/Casks/font-noto-sans-cypriot.rb b/Casks/font-noto-sans-cypriot.rb
index f572f5d470da..58f0b7ffc264 100644
--- a/Casks/font-noto-sans-cypriot.rb
+++ b/Casks/font-noto-sans-cypriot.rb
@@ -1,5 +1,5 @@
 class FontNotoSansCypriot < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansCypriot-unhinted.zip'
diff --git a/Casks/font-noto-sans-deseret.rb b/Casks/font-noto-sans-deseret.rb
index 9b1c13c7dc78..242ce6914e4d 100644
--- a/Casks/font-noto-sans-deseret.rb
+++ b/Casks/font-noto-sans-deseret.rb
@@ -1,5 +1,5 @@
 class FontNotoSansDeseret < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansDeseret-unhinted.zip'
diff --git a/Casks/font-noto-sans-devanagari.rb b/Casks/font-noto-sans-devanagari.rb
index 9cd90001924b..91e380bfa4cb 100644
--- a/Casks/font-noto-sans-devanagari.rb
+++ b/Casks/font-noto-sans-devanagari.rb
@@ -1,5 +1,5 @@
 class FontNotoSansDevanagari < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansDevanagari-hinted.zip'
diff --git a/Casks/font-noto-sans-egyptian-hieroglyphs.rb b/Casks/font-noto-sans-egyptian-hieroglyphs.rb
index 5282b8de74e7..4831b6069cd8 100644
--- a/Casks/font-noto-sans-egyptian-hieroglyphs.rb
+++ b/Casks/font-noto-sans-egyptian-hieroglyphs.rb
@@ -1,5 +1,5 @@
 class FontNotoSansEgyptianHieroglyphs < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansEgyptianHieroglyphs-unhinted.zip'
diff --git a/Casks/font-noto-sans-ethiopic.rb b/Casks/font-noto-sans-ethiopic.rb
index d7d3314c8112..9656795667d6 100644
--- a/Casks/font-noto-sans-ethiopic.rb
+++ b/Casks/font-noto-sans-ethiopic.rb
@@ -1,5 +1,5 @@
 class FontNotoSansEthiopic < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansEthiopic-hinted.zip'
diff --git a/Casks/font-noto-sans-georgian.rb b/Casks/font-noto-sans-georgian.rb
index 414d268254db..8ee4475f8480 100644
--- a/Casks/font-noto-sans-georgian.rb
+++ b/Casks/font-noto-sans-georgian.rb
@@ -1,5 +1,5 @@
 class FontNotoSansGeorgian < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansGeorgian-hinted.zip'
diff --git a/Casks/font-noto-sans-glagolitic.rb b/Casks/font-noto-sans-glagolitic.rb
index cd0a55b37f6e..030407179e30 100644
--- a/Casks/font-noto-sans-glagolitic.rb
+++ b/Casks/font-noto-sans-glagolitic.rb
@@ -1,5 +1,5 @@
 class FontNotoSansGlagolitic < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansGlagolitic-unhinted.zip'
diff --git a/Casks/font-noto-sans-gothic.rb b/Casks/font-noto-sans-gothic.rb
index 57a50bb4f371..c27344e047af 100644
--- a/Casks/font-noto-sans-gothic.rb
+++ b/Casks/font-noto-sans-gothic.rb
@@ -1,5 +1,5 @@
 class FontNotoSansGothic < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansGothic-unhinted.zip'
diff --git a/Casks/font-noto-sans-gujarati.rb b/Casks/font-noto-sans-gujarati.rb
index 817074a20692..51b555bf903c 100644
--- a/Casks/font-noto-sans-gujarati.rb
+++ b/Casks/font-noto-sans-gujarati.rb
@@ -1,5 +1,5 @@
 class FontNotoSansGujarati < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansGujarati-hinted.zip'
diff --git a/Casks/font-noto-sans-gurmukhi.rb b/Casks/font-noto-sans-gurmukhi.rb
index 4a82d7a425dc..9f04ad5a5056 100644
--- a/Casks/font-noto-sans-gurmukhi.rb
+++ b/Casks/font-noto-sans-gurmukhi.rb
@@ -1,5 +1,5 @@
 class FontNotoSansGurmukhi < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansGurmukhi-hinted.zip'
diff --git a/Casks/font-noto-sans-hanunoo.rb b/Casks/font-noto-sans-hanunoo.rb
index a51f88334edc..9d78b4597cd5 100644
--- a/Casks/font-noto-sans-hanunoo.rb
+++ b/Casks/font-noto-sans-hanunoo.rb
@@ -1,5 +1,5 @@
 class FontNotoSansHanunoo < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansHanunoo-unhinted.zip'
diff --git a/Casks/font-noto-sans-hebrew.rb b/Casks/font-noto-sans-hebrew.rb
index 914bc09ee6de..446bd9b47f51 100644
--- a/Casks/font-noto-sans-hebrew.rb
+++ b/Casks/font-noto-sans-hebrew.rb
@@ -1,5 +1,5 @@
 class FontNotoSansHebrew < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansHebrew-hinted.zip'
diff --git a/Casks/font-noto-sans-imperial-aramaic.rb b/Casks/font-noto-sans-imperial-aramaic.rb
index 56e406ed0d27..7d31d82604ec 100644
--- a/Casks/font-noto-sans-imperial-aramaic.rb
+++ b/Casks/font-noto-sans-imperial-aramaic.rb
@@ -1,5 +1,5 @@
 class FontNotoSansImperialAramaic < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansImperialAramaic-unhinted.zip'
diff --git a/Casks/font-noto-sans-inscriptional-pahlavi.rb b/Casks/font-noto-sans-inscriptional-pahlavi.rb
index 6787cc9eccff..bc881c35f418 100644
--- a/Casks/font-noto-sans-inscriptional-pahlavi.rb
+++ b/Casks/font-noto-sans-inscriptional-pahlavi.rb
@@ -1,5 +1,5 @@
 class FontNotoSansInscriptionalPahlavi < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansInscriptionalPahlavi-unhinted.zip'
diff --git a/Casks/font-noto-sans-inscriptional-parthian.rb b/Casks/font-noto-sans-inscriptional-parthian.rb
index 53d117488ac8..0210de9b1ae5 100644
--- a/Casks/font-noto-sans-inscriptional-parthian.rb
+++ b/Casks/font-noto-sans-inscriptional-parthian.rb
@@ -1,5 +1,5 @@
 class FontNotoSansInscriptionalParthian < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansInscriptionalParthian-unhinted.zip'
diff --git a/Casks/font-noto-sans-japanese.rb b/Casks/font-noto-sans-japanese.rb
index 75af60d85833..ba7a54a04a21 100644
--- a/Casks/font-noto-sans-japanese.rb
+++ b/Casks/font-noto-sans-japanese.rb
@@ -1,5 +1,5 @@
 class FontNotoSansJapanese < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.google.com/get/noto/pkgs/NotoSansJapanese-hinted.zip'
diff --git a/Casks/font-noto-sans-javanese.rb b/Casks/font-noto-sans-javanese.rb
index 1330d2de6ff7..414c689edb11 100644
--- a/Casks/font-noto-sans-javanese.rb
+++ b/Casks/font-noto-sans-javanese.rb
@@ -1,5 +1,5 @@
 class FontNotoSansJavanese < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansJavanese-unhinted.zip'
diff --git a/Casks/font-noto-sans-kaithi.rb b/Casks/font-noto-sans-kaithi.rb
index 8a312cd23e35..65f0e6464d11 100644
--- a/Casks/font-noto-sans-kaithi.rb
+++ b/Casks/font-noto-sans-kaithi.rb
@@ -1,5 +1,5 @@
 class FontNotoSansKaithi < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansKaithi-unhinted.zip'
diff --git a/Casks/font-noto-sans-kannada.rb b/Casks/font-noto-sans-kannada.rb
index dbee7140d3c9..56bf8bc95409 100644
--- a/Casks/font-noto-sans-kannada.rb
+++ b/Casks/font-noto-sans-kannada.rb
@@ -1,5 +1,5 @@
 class FontNotoSansKannada < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansKannada-hinted.zip'
diff --git a/Casks/font-noto-sans-kayah-li.rb b/Casks/font-noto-sans-kayah-li.rb
index 9a16baef61f0..f920b9b4a004 100644
--- a/Casks/font-noto-sans-kayah-li.rb
+++ b/Casks/font-noto-sans-kayah-li.rb
@@ -1,5 +1,5 @@
 class FontNotoSansKayahLi < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansKayahLi-unhinted.zip'
diff --git a/Casks/font-noto-sans-kharoshthi.rb b/Casks/font-noto-sans-kharoshthi.rb
index 54b34d4b088e..9237fd6e8dd1 100644
--- a/Casks/font-noto-sans-kharoshthi.rb
+++ b/Casks/font-noto-sans-kharoshthi.rb
@@ -1,5 +1,5 @@
 class FontNotoSansKharoshthi < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansKharoshthi-unhinted.zip'
diff --git a/Casks/font-noto-sans-khmer.rb b/Casks/font-noto-sans-khmer.rb
index 94b9232b5ede..967da53cd8a8 100644
--- a/Casks/font-noto-sans-khmer.rb
+++ b/Casks/font-noto-sans-khmer.rb
@@ -1,5 +1,5 @@
 class FontNotoSansKhmer < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansKhmer-hinted.zip'
diff --git a/Casks/font-noto-sans-korean.rb b/Casks/font-noto-sans-korean.rb
index 1094cd68f052..467bc9a93110 100644
--- a/Casks/font-noto-sans-korean.rb
+++ b/Casks/font-noto-sans-korean.rb
@@ -1,5 +1,5 @@
 class FontNotoSansKorean < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.google.com/get/noto/pkgs/NotoSansKorean-hinted.zip'
diff --git a/Casks/font-noto-sans-lao.rb b/Casks/font-noto-sans-lao.rb
index 603103f13852..a50b40ae3a07 100644
--- a/Casks/font-noto-sans-lao.rb
+++ b/Casks/font-noto-sans-lao.rb
@@ -1,5 +1,5 @@
 class FontNotoSansLao < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansLao-hinted.zip'
diff --git a/Casks/font-noto-sans-lepcha.rb b/Casks/font-noto-sans-lepcha.rb
index 6e03307bdb16..078fcd42f563 100644
--- a/Casks/font-noto-sans-lepcha.rb
+++ b/Casks/font-noto-sans-lepcha.rb
@@ -1,5 +1,5 @@
 class FontNotoSansLepcha < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansLepcha-unhinted.zip'
diff --git a/Casks/font-noto-sans-limbu.rb b/Casks/font-noto-sans-limbu.rb
index 34639025f55b..fb63e4da6205 100644
--- a/Casks/font-noto-sans-limbu.rb
+++ b/Casks/font-noto-sans-limbu.rb
@@ -1,5 +1,5 @@
 class FontNotoSansLimbu < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansLimbu-unhinted.zip'
diff --git a/Casks/font-noto-sans-linear-b.rb b/Casks/font-noto-sans-linear-b.rb
index 4687199a3d63..7ba8ad02a15b 100644
--- a/Casks/font-noto-sans-linear-b.rb
+++ b/Casks/font-noto-sans-linear-b.rb
@@ -1,5 +1,5 @@
 class FontNotoSansLinearB < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansLinearB-unhinted.zip'
diff --git a/Casks/font-noto-sans-lisu.rb b/Casks/font-noto-sans-lisu.rb
index 84a69be31b5f..cfd62e2699da 100644
--- a/Casks/font-noto-sans-lisu.rb
+++ b/Casks/font-noto-sans-lisu.rb
@@ -1,5 +1,5 @@
 class FontNotoSansLisu < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansLisu-unhinted.zip'
diff --git a/Casks/font-noto-sans-lycian.rb b/Casks/font-noto-sans-lycian.rb
index 18d2687883ca..3eff9a9cdb45 100644
--- a/Casks/font-noto-sans-lycian.rb
+++ b/Casks/font-noto-sans-lycian.rb
@@ -1,5 +1,5 @@
 class FontNotoSansLycian < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansLycian-unhinted.zip'
diff --git a/Casks/font-noto-sans-lydian.rb b/Casks/font-noto-sans-lydian.rb
index 16ca6a71f6b7..00284944b918 100644
--- a/Casks/font-noto-sans-lydian.rb
+++ b/Casks/font-noto-sans-lydian.rb
@@ -1,5 +1,5 @@
 class FontNotoSansLydian < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansLydian-unhinted.zip'
diff --git a/Casks/font-noto-sans-malayalam.rb b/Casks/font-noto-sans-malayalam.rb
index f60760da34e5..270186286b27 100644
--- a/Casks/font-noto-sans-malayalam.rb
+++ b/Casks/font-noto-sans-malayalam.rb
@@ -1,5 +1,5 @@
 class FontNotoSansMalayalam < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansMalayalam-hinted.zip'
diff --git a/Casks/font-noto-sans-mandaic.rb b/Casks/font-noto-sans-mandaic.rb
index 59112ae5a31d..5cc7a8f38060 100644
--- a/Casks/font-noto-sans-mandaic.rb
+++ b/Casks/font-noto-sans-mandaic.rb
@@ -1,5 +1,5 @@
 class FontNotoSansMandaic < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansMandaic-unhinted.zip'
diff --git a/Casks/font-noto-sans-meetei-mayek.rb b/Casks/font-noto-sans-meetei-mayek.rb
index c17fcf74222c..0b03ccc2a0f7 100644
--- a/Casks/font-noto-sans-meetei-mayek.rb
+++ b/Casks/font-noto-sans-meetei-mayek.rb
@@ -1,5 +1,5 @@
 class FontNotoSansMeeteiMayek < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansMeeteiMayek-unhinted.zip'
diff --git a/Casks/font-noto-sans-mongolian.rb b/Casks/font-noto-sans-mongolian.rb
index 5f038ecbb33c..d127a9c625e9 100644
--- a/Casks/font-noto-sans-mongolian.rb
+++ b/Casks/font-noto-sans-mongolian.rb
@@ -1,5 +1,5 @@
 class FontNotoSansMongolian < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansMongolian-unhinted.zip'
diff --git a/Casks/font-noto-sans-myanmar.rb b/Casks/font-noto-sans-myanmar.rb
index ea5a09be82ab..dbb8fa33a601 100644
--- a/Casks/font-noto-sans-myanmar.rb
+++ b/Casks/font-noto-sans-myanmar.rb
@@ -1,5 +1,5 @@
 class FontNotoSansMyanmar < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansMyanmar-unhinted.zip'
diff --git a/Casks/font-noto-sans-n-ko.rb b/Casks/font-noto-sans-n-ko.rb
index 7fb5ec6963fe..2344ae950180 100644
--- a/Casks/font-noto-sans-n-ko.rb
+++ b/Casks/font-noto-sans-n-ko.rb
@@ -1,5 +1,5 @@
 class FontNotoSansNKo < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansNKo-unhinted.zip'
diff --git a/Casks/font-noto-sans-new-tai-lue.rb b/Casks/font-noto-sans-new-tai-lue.rb
index 4a942d154ce0..ce81c4e6734d 100644
--- a/Casks/font-noto-sans-new-tai-lue.rb
+++ b/Casks/font-noto-sans-new-tai-lue.rb
@@ -1,5 +1,5 @@
 class FontNotoSansNewTaiLue < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansNewTaiLue-unhinted.zip'
diff --git a/Casks/font-noto-sans-ogham.rb b/Casks/font-noto-sans-ogham.rb
index a1b4144aa53e..2d775c2c87f6 100644
--- a/Casks/font-noto-sans-ogham.rb
+++ b/Casks/font-noto-sans-ogham.rb
@@ -1,5 +1,5 @@
 class FontNotoSansOgham < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansOgham-unhinted.zip'
diff --git a/Casks/font-noto-sans-ol-chiki.rb b/Casks/font-noto-sans-ol-chiki.rb
index a3dc90bbd69b..cd5f2219367a 100644
--- a/Casks/font-noto-sans-ol-chiki.rb
+++ b/Casks/font-noto-sans-ol-chiki.rb
@@ -1,5 +1,5 @@
 class FontNotoSansOlChiki < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansOlChiki-unhinted.zip'
diff --git a/Casks/font-noto-sans-old-italic.rb b/Casks/font-noto-sans-old-italic.rb
index e396b4631a9d..601d276032fb 100644
--- a/Casks/font-noto-sans-old-italic.rb
+++ b/Casks/font-noto-sans-old-italic.rb
@@ -1,5 +1,5 @@
 class FontNotoSansOldItalic < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansOldItalic-unhinted.zip'
diff --git a/Casks/font-noto-sans-old-persian.rb b/Casks/font-noto-sans-old-persian.rb
index eb0a9a683af4..a184caa44a1e 100644
--- a/Casks/font-noto-sans-old-persian.rb
+++ b/Casks/font-noto-sans-old-persian.rb
@@ -1,5 +1,5 @@
 class FontNotoSansOldPersian < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansOldPersian-unhinted.zip'
diff --git a/Casks/font-noto-sans-old-south-arabian.rb b/Casks/font-noto-sans-old-south-arabian.rb
index 27726263fd43..8cf674f56286 100644
--- a/Casks/font-noto-sans-old-south-arabian.rb
+++ b/Casks/font-noto-sans-old-south-arabian.rb
@@ -1,5 +1,5 @@
 class FontNotoSansOldSouthArabian < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansOldSouthArabian-unhinted.zip'
diff --git a/Casks/font-noto-sans-old-turkic.rb b/Casks/font-noto-sans-old-turkic.rb
index aa137f3c54f6..d93600cc3604 100644
--- a/Casks/font-noto-sans-old-turkic.rb
+++ b/Casks/font-noto-sans-old-turkic.rb
@@ -1,5 +1,5 @@
 class FontNotoSansOldTurkic < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansOldTurkic-unhinted.zip'
diff --git a/Casks/font-noto-sans-osmanya.rb b/Casks/font-noto-sans-osmanya.rb
index 7cef2650745d..88fc48f202b9 100644
--- a/Casks/font-noto-sans-osmanya.rb
+++ b/Casks/font-noto-sans-osmanya.rb
@@ -1,5 +1,5 @@
 class FontNotoSansOsmanya < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansOsmanya-unhinted.zip'
diff --git a/Casks/font-noto-sans-phags-pa.rb b/Casks/font-noto-sans-phags-pa.rb
index d0eea05e1a5f..671f6e7f796f 100644
--- a/Casks/font-noto-sans-phags-pa.rb
+++ b/Casks/font-noto-sans-phags-pa.rb
@@ -1,5 +1,5 @@
 class FontNotoSansPhagsPa < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansPhags-pa-unhinted.zip'
diff --git a/Casks/font-noto-sans-phoenician.rb b/Casks/font-noto-sans-phoenician.rb
index 3a7f37dcc608..f941db0debe1 100644
--- a/Casks/font-noto-sans-phoenician.rb
+++ b/Casks/font-noto-sans-phoenician.rb
@@ -1,5 +1,5 @@
 class FontNotoSansPhoenician < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansPhoenician-unhinted.zip'
diff --git a/Casks/font-noto-sans-rejang.rb b/Casks/font-noto-sans-rejang.rb
index 3a86613f7f30..37cba5b87a3e 100644
--- a/Casks/font-noto-sans-rejang.rb
+++ b/Casks/font-noto-sans-rejang.rb
@@ -1,5 +1,5 @@
 class FontNotoSansRejang < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansRejang-unhinted.zip'
diff --git a/Casks/font-noto-sans-runic.rb b/Casks/font-noto-sans-runic.rb
index c57b74d4ed4b..c5ba084cbba1 100644
--- a/Casks/font-noto-sans-runic.rb
+++ b/Casks/font-noto-sans-runic.rb
@@ -1,5 +1,5 @@
 class FontNotoSansRunic < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansRunic-unhinted.zip'
diff --git a/Casks/font-noto-sans-s-chinese.rb b/Casks/font-noto-sans-s-chinese.rb
index b3af2d0dd578..012bd81e57b3 100644
--- a/Casks/font-noto-sans-s-chinese.rb
+++ b/Casks/font-noto-sans-s-chinese.rb
@@ -1,5 +1,5 @@
 class FontNotoSansSChinese < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.google.com/get/noto/pkgs/NotoSansSChinese-hinted.zip'
diff --git a/Casks/font-noto-sans-samaritan.rb b/Casks/font-noto-sans-samaritan.rb
index 86cacad1bc23..3796dbd0dce0 100644
--- a/Casks/font-noto-sans-samaritan.rb
+++ b/Casks/font-noto-sans-samaritan.rb
@@ -1,5 +1,5 @@
 class FontNotoSansSamaritan < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansSamaritan-unhinted.zip'
diff --git a/Casks/font-noto-sans-saurashtra.rb b/Casks/font-noto-sans-saurashtra.rb
index 1f767ab2635f..bba120dc115b 100644
--- a/Casks/font-noto-sans-saurashtra.rb
+++ b/Casks/font-noto-sans-saurashtra.rb
@@ -1,5 +1,5 @@
 class FontNotoSansSaurashtra < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansSaurashtra-unhinted.zip'
diff --git a/Casks/font-noto-sans-shavian.rb b/Casks/font-noto-sans-shavian.rb
index 869e540d67fd..1a507e4d5a4a 100644
--- a/Casks/font-noto-sans-shavian.rb
+++ b/Casks/font-noto-sans-shavian.rb
@@ -1,5 +1,5 @@
 class FontNotoSansShavian < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansShavian-unhinted.zip'
diff --git a/Casks/font-noto-sans-sinhala.rb b/Casks/font-noto-sans-sinhala.rb
index 178ba70cb2ae..e65bb2ca5438 100644
--- a/Casks/font-noto-sans-sinhala.rb
+++ b/Casks/font-noto-sans-sinhala.rb
@@ -1,5 +1,5 @@
 class FontNotoSansSinhala < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansSinhala-unhinted.zip'
diff --git a/Casks/font-noto-sans-sumero-akkadian-cuneiform.rb b/Casks/font-noto-sans-sumero-akkadian-cuneiform.rb
index fdaf921bf0dd..6496348f5769 100644
--- a/Casks/font-noto-sans-sumero-akkadian-cuneiform.rb
+++ b/Casks/font-noto-sans-sumero-akkadian-cuneiform.rb
@@ -1,5 +1,5 @@
 class FontNotoSansSumeroAkkadianCuneiform < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansSumero-AkkadianCuneiform-unhinted.zip'
diff --git a/Casks/font-noto-sans-sundanese.rb b/Casks/font-noto-sans-sundanese.rb
index 7a6ea8fa4512..ffe3877f041d 100644
--- a/Casks/font-noto-sans-sundanese.rb
+++ b/Casks/font-noto-sans-sundanese.rb
@@ -1,5 +1,5 @@
 class FontNotoSansSundanese < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansSundanese-unhinted.zip'
diff --git a/Casks/font-noto-sans-syloti-nagri.rb b/Casks/font-noto-sans-syloti-nagri.rb
index 6a9908c9da08..11c8a9cc60ee 100644
--- a/Casks/font-noto-sans-syloti-nagri.rb
+++ b/Casks/font-noto-sans-syloti-nagri.rb
@@ -1,5 +1,5 @@
 class FontNotoSansSylotiNagri < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansSylotiNagri-unhinted.zip'
diff --git a/Casks/font-noto-sans-symbols.rb b/Casks/font-noto-sans-symbols.rb
index fd0496d8a961..62b171ff52d7 100644
--- a/Casks/font-noto-sans-symbols.rb
+++ b/Casks/font-noto-sans-symbols.rb
@@ -1,5 +1,5 @@
 class FontNotoSansSymbols < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansSymbols-unhinted.zip'
diff --git a/Casks/font-noto-sans-syriac-eastern.rb b/Casks/font-noto-sans-syriac-eastern.rb
index 353c3eb73563..aceac16d4a9c 100644
--- a/Casks/font-noto-sans-syriac-eastern.rb
+++ b/Casks/font-noto-sans-syriac-eastern.rb
@@ -1,5 +1,5 @@
 class FontNotoSansSyriacEastern < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansSyriacEastern-unhinted.zip'
diff --git a/Casks/font-noto-sans-syriac-estrangela.rb b/Casks/font-noto-sans-syriac-estrangela.rb
index c331febfcfd0..b96998a63961 100644
--- a/Casks/font-noto-sans-syriac-estrangela.rb
+++ b/Casks/font-noto-sans-syriac-estrangela.rb
@@ -1,5 +1,5 @@
 class FontNotoSansSyriacEstrangela < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansSyriacEstrangela-unhinted.zip'
diff --git a/Casks/font-noto-sans-syriac-western.rb b/Casks/font-noto-sans-syriac-western.rb
index c5ba30a5b27a..bff5791c7448 100644
--- a/Casks/font-noto-sans-syriac-western.rb
+++ b/Casks/font-noto-sans-syriac-western.rb
@@ -1,5 +1,5 @@
 class FontNotoSansSyriacWestern < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansSyriacWestern-unhinted.zip'
diff --git a/Casks/font-noto-sans-t-chinese.rb b/Casks/font-noto-sans-t-chinese.rb
index 2f2bc0e155d9..3d45372e4377 100644
--- a/Casks/font-noto-sans-t-chinese.rb
+++ b/Casks/font-noto-sans-t-chinese.rb
@@ -1,5 +1,5 @@
 class FontNotoSansTChinese < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.google.com/get/noto/pkgs/NotoSansTChinese-hinted.zip'
diff --git a/Casks/font-noto-sans-tagalog.rb b/Casks/font-noto-sans-tagalog.rb
index 07a41f70e380..d09da2ddc21b 100644
--- a/Casks/font-noto-sans-tagalog.rb
+++ b/Casks/font-noto-sans-tagalog.rb
@@ -1,5 +1,5 @@
 class FontNotoSansTagalog < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansTagalog-unhinted.zip'
diff --git a/Casks/font-noto-sans-tagbanwa.rb b/Casks/font-noto-sans-tagbanwa.rb
index e874fb5de69b..23da89f526f3 100644
--- a/Casks/font-noto-sans-tagbanwa.rb
+++ b/Casks/font-noto-sans-tagbanwa.rb
@@ -1,5 +1,5 @@
 class FontNotoSansTagbanwa < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansTagbanwa-unhinted.zip'
diff --git a/Casks/font-noto-sans-tai-le.rb b/Casks/font-noto-sans-tai-le.rb
index b4ad95e1c2c8..0d08dd0f9a29 100644
--- a/Casks/font-noto-sans-tai-le.rb
+++ b/Casks/font-noto-sans-tai-le.rb
@@ -1,5 +1,5 @@
 class FontNotoSansTaiLe < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansTaiLe-unhinted.zip'
diff --git a/Casks/font-noto-sans-tai-tham.rb b/Casks/font-noto-sans-tai-tham.rb
index 2543b478f8b9..d48e0a558d80 100644
--- a/Casks/font-noto-sans-tai-tham.rb
+++ b/Casks/font-noto-sans-tai-tham.rb
@@ -1,5 +1,5 @@
 class FontNotoSansTaiTham < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansTaiTham-unhinted.zip'
diff --git a/Casks/font-noto-sans-tai-viet.rb b/Casks/font-noto-sans-tai-viet.rb
index 2aae5096fc11..4bd87c6719ec 100644
--- a/Casks/font-noto-sans-tai-viet.rb
+++ b/Casks/font-noto-sans-tai-viet.rb
@@ -1,5 +1,5 @@
 class FontNotoSansTaiViet < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansTaiViet-unhinted.zip'
diff --git a/Casks/font-noto-sans-tamil.rb b/Casks/font-noto-sans-tamil.rb
index 6a6bb0a73af1..2f59b51edbc1 100644
--- a/Casks/font-noto-sans-tamil.rb
+++ b/Casks/font-noto-sans-tamil.rb
@@ -1,5 +1,5 @@
 class FontNotoSansTamil < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansTamil-hinted.zip'
diff --git a/Casks/font-noto-sans-telugu.rb b/Casks/font-noto-sans-telugu.rb
index a56e9b2dfe63..c55fa3db8cbe 100644
--- a/Casks/font-noto-sans-telugu.rb
+++ b/Casks/font-noto-sans-telugu.rb
@@ -1,5 +1,5 @@
 class FontNotoSansTelugu < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansTelugu-hinted.zip'
diff --git a/Casks/font-noto-sans-thai.rb b/Casks/font-noto-sans-thai.rb
index bb4c1befd1a8..9479a9bab496 100644
--- a/Casks/font-noto-sans-thai.rb
+++ b/Casks/font-noto-sans-thai.rb
@@ -1,5 +1,5 @@
 class FontNotoSansThai < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansThai-hinted.zip'
diff --git a/Casks/font-noto-sans-tifinagh.rb b/Casks/font-noto-sans-tifinagh.rb
index 153f395d3da5..b89c94a19be4 100644
--- a/Casks/font-noto-sans-tifinagh.rb
+++ b/Casks/font-noto-sans-tifinagh.rb
@@ -1,5 +1,5 @@
 class FontNotoSansTifinagh < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansTifinagh-unhinted.zip'
diff --git a/Casks/font-noto-sans-ugaritic.rb b/Casks/font-noto-sans-ugaritic.rb
index 74100b21e449..165f4cbff4b7 100644
--- a/Casks/font-noto-sans-ugaritic.rb
+++ b/Casks/font-noto-sans-ugaritic.rb
@@ -1,5 +1,5 @@
 class FontNotoSansUgaritic < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansUgaritic-unhinted.zip'
diff --git a/Casks/font-noto-sans-vai.rb b/Casks/font-noto-sans-vai.rb
index 84c3d1a55fce..744a1292894d 100644
--- a/Casks/font-noto-sans-vai.rb
+++ b/Casks/font-noto-sans-vai.rb
@@ -1,5 +1,5 @@
 class FontNotoSansVai < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansVai-unhinted.zip'
diff --git a/Casks/font-noto-sans-yi.rb b/Casks/font-noto-sans-yi.rb
index 737e7e6dec09..da6b8331ef2a 100644
--- a/Casks/font-noto-sans-yi.rb
+++ b/Casks/font-noto-sans-yi.rb
@@ -1,5 +1,5 @@
 class FontNotoSansYi < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSansYi-unhinted.zip'
diff --git a/Casks/font-noto-sans.rb b/Casks/font-noto-sans.rb
index 82a3ec2b7598..b7447a7a890f 100644
--- a/Casks/font-noto-sans.rb
+++ b/Casks/font-noto-sans.rb
@@ -1,5 +1,5 @@
 class FontNotoSans < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.google.com/get/noto/pkgs/NotoSans-unhinted.zip'
diff --git a/Casks/font-noto-serif-armenian.rb b/Casks/font-noto-serif-armenian.rb
index 782fcf634299..0dcd47b5da3f 100644
--- a/Casks/font-noto-serif-armenian.rb
+++ b/Casks/font-noto-serif-armenian.rb
@@ -1,5 +1,5 @@
 class FontNotoSerifArmenian < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSerifArmenian-hinted.zip'
diff --git a/Casks/font-noto-serif-georgian.rb b/Casks/font-noto-serif-georgian.rb
index 0861b75e4ce3..30742a06d634 100644
--- a/Casks/font-noto-serif-georgian.rb
+++ b/Casks/font-noto-serif-georgian.rb
@@ -1,5 +1,5 @@
 class FontNotoSerifGeorgian < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSerifGeorgian-hinted.zip'
diff --git a/Casks/font-noto-serif-khmer.rb b/Casks/font-noto-serif-khmer.rb
index 1957b16a609c..5890927df244 100644
--- a/Casks/font-noto-serif-khmer.rb
+++ b/Casks/font-noto-serif-khmer.rb
@@ -1,5 +1,5 @@
 class FontNotoSerifKhmer < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSerifKhmer-hinted.zip'
diff --git a/Casks/font-noto-serif-lao.rb b/Casks/font-noto-serif-lao.rb
index 21631b39e02f..348cae78562b 100644
--- a/Casks/font-noto-serif-lao.rb
+++ b/Casks/font-noto-serif-lao.rb
@@ -1,5 +1,5 @@
 class FontNotoSerifLao < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSerifLao-hinted.zip'
diff --git a/Casks/font-noto-serif-thai.rb b/Casks/font-noto-serif-thai.rb
index 5e3083c32084..6b31b20ed701 100644
--- a/Casks/font-noto-serif-thai.rb
+++ b/Casks/font-noto-serif-thai.rb
@@ -1,5 +1,5 @@
 class FontNotoSerifThai < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://www.google.com/get/noto/pkgs/NotoSerifThai-hinted.zip'
diff --git a/Casks/font-noto-serif.rb b/Casks/font-noto-serif.rb
index 2a8dedfcd005..819c41b033d0 100644
--- a/Casks/font-noto-serif.rb
+++ b/Casks/font-noto-serif.rb
@@ -1,5 +1,5 @@
 class FontNotoSerif < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.google.com/get/noto/pkgs/NotoSerif-unhinted.zip'
diff --git a/Casks/font-nunito.rb b/Casks/font-nunito.rb
index 97a579b9815d..69380476b9a9 100644
--- a/Casks/font-nunito.rb
+++ b/Casks/font-nunito.rb
@@ -1,6 +1,6 @@
 class FontNunito < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/nunito',
diff --git a/Casks/font-old-standard-tt.rb b/Casks/font-old-standard-tt.rb
index 68347da3af79..0f241d706b61 100644
--- a/Casks/font-old-standard-tt.rb
+++ b/Casks/font-old-standard-tt.rb
@@ -1,6 +1,6 @@
 class FontOldStandardTt < Cask
   # version '2.0.2'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/oldstandardtt',
diff --git a/Casks/font-oleo-script-swash-caps.rb b/Casks/font-oleo-script-swash-caps.rb
index 9cec54d0ec76..dfac58921ac2 100644
--- a/Casks/font-oleo-script-swash-caps.rb
+++ b/Casks/font-oleo-script-swash-caps.rb
@@ -1,6 +1,6 @@
 class FontOleoScriptSwashCaps < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/oleoscriptswashcaps',
diff --git a/Casks/font-oleo-script.rb b/Casks/font-oleo-script.rb
index f1753ef4bcae..23cf5ad309b3 100644
--- a/Casks/font-oleo-script.rb
+++ b/Casks/font-oleo-script.rb
@@ -1,6 +1,6 @@
 class FontOleoScript < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/oleoscript',
diff --git a/Casks/font-open-iconic.rb b/Casks/font-open-iconic.rb
index 5a9c4b0fc0bc..e59161280222 100644
--- a/Casks/font-open-iconic.rb
+++ b/Casks/font-open-iconic.rb
@@ -1,6 +1,6 @@
 class FontOpenIconic < Cask
   # version '1.1.0'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/iconic/open-iconic/archive/1.1.0.zip'
diff --git a/Casks/font-open-sans-condensed.rb b/Casks/font-open-sans-condensed.rb
index 394eaff15063..90a2d1c0de86 100644
--- a/Casks/font-open-sans-condensed.rb
+++ b/Casks/font-open-sans-condensed.rb
@@ -1,6 +1,6 @@
 class FontOpenSansCondensed < Cask
   # version '1.11'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/opensanscondensed',
diff --git a/Casks/font-open-sans-hebrew-condensed.rb b/Casks/font-open-sans-hebrew-condensed.rb
index aa3f710029de..bc2021a16a92 100644
--- a/Casks/font-open-sans-hebrew-condensed.rb
+++ b/Casks/font-open-sans-hebrew-condensed.rb
@@ -1,6 +1,6 @@
 class FontOpenSansHebrewCondensed < Cask
   # version '2.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/opensanshebrewcondensed',
diff --git a/Casks/font-open-sans-hebrew.rb b/Casks/font-open-sans-hebrew.rb
index 29dff0ee93ff..112eabfdef79 100644
--- a/Casks/font-open-sans-hebrew.rb
+++ b/Casks/font-open-sans-hebrew.rb
@@ -1,6 +1,6 @@
 class FontOpenSansHebrew < Cask
   # version '2.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/opensanshebrew',
diff --git a/Casks/font-open-sans.rb b/Casks/font-open-sans.rb
index dd44e623b43a..89f295baa4ab 100644
--- a/Casks/font-open-sans.rb
+++ b/Casks/font-open-sans.rb
@@ -1,6 +1,6 @@
 class FontOpenSans < Cask
   # version '1.10'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/opensans',
diff --git a/Casks/font-orbitron.rb b/Casks/font-orbitron.rb
index cee95f3112bd..011c7487d15d 100644
--- a/Casks/font-orbitron.rb
+++ b/Casks/font-orbitron.rb
@@ -1,6 +1,6 @@
 class FontOrbitron < Cask
   # version '001.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/orbitron',
diff --git a/Casks/font-oregano.rb b/Casks/font-oregano.rb
index 0b9960f58820..6746c9c8dac6 100644
--- a/Casks/font-oregano.rb
+++ b/Casks/font-oregano.rb
@@ -1,6 +1,6 @@
 class FontOregano < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/oregano',
diff --git a/Casks/font-oskiblackfoot.rb b/Casks/font-oskiblackfoot.rb
index 455fe2ba6af5..84c6d3e196a1 100644
--- a/Casks/font-oskiblackfoot.rb
+++ b/Casks/font-oskiblackfoot.rb
@@ -1,5 +1,5 @@
 class FontOskiblackfoot < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '1.000'
   # sha256 'b1d86bfaf02d1d61b1b32b204ee3ae57d9f7d2eccd7206596d42aec96e851089'
diff --git a/Casks/font-oskidakelh.rb b/Casks/font-oskidakelh.rb
index 2f97e39963c3..724e2462d373 100644
--- a/Casks/font-oskidakelh.rb
+++ b/Casks/font-oskidakelh.rb
@@ -1,5 +1,5 @@
 class FontOskidakelh < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '1.000'
   # sha256 '0e3d7de2055273b845660a938a31edfe518b69caa257bc48bb40fa5162078587'
diff --git a/Casks/font-oskidenea.rb b/Casks/font-oskidenea.rb
index 0fbb3457e9ca..38009a68bcb3 100644
--- a/Casks/font-oskidenea.rb
+++ b/Casks/font-oskidenea.rb
@@ -1,5 +1,5 @@
 class FontOskidenea < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '1.000'
   # sha256 '7f19f39b6d7276b0e2425d670188772c55adb1b963c01fa103f5dba8b506d4e5'
diff --git a/Casks/font-oskideneb.rb b/Casks/font-oskideneb.rb
index ea526e355bd2..7a2e74fc1856 100644
--- a/Casks/font-oskideneb.rb
+++ b/Casks/font-oskideneb.rb
@@ -1,5 +1,5 @@
 class FontOskideneb < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '1.000'
   # sha256 'c5f5ad413d500422418377dcfefaf1be09326d549616c9c20a7b84f579e578be'
diff --git a/Casks/font-oskidenec.rb b/Casks/font-oskidenec.rb
index fa09ec8f0b48..ba01ec59469f 100644
--- a/Casks/font-oskidenec.rb
+++ b/Casks/font-oskidenec.rb
@@ -1,5 +1,5 @@
 class FontOskidenec < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '1.000'
   # sha256 '6bae2b488e9f29b50c950aa49298fe6ddf50a35a5d40a740e59f49e0096dec26'
diff --git a/Casks/font-oskidenes.rb b/Casks/font-oskidenes.rb
index 24b16d345ec0..51d69901c216 100644
--- a/Casks/font-oskidenes.rb
+++ b/Casks/font-oskidenes.rb
@@ -1,5 +1,5 @@
 class FontOskidenes < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '1.000'
   # sha256 '4f951d09daf71c412e1335da0a501a7bab785bcae83f77637ca5edf91c3584b0'
diff --git a/Casks/font-oskieast.rb b/Casks/font-oskieast.rb
index f70ed25b769b..6dbfedb52130 100644
--- a/Casks/font-oskieast.rb
+++ b/Casks/font-oskieast.rb
@@ -1,5 +1,5 @@
 class FontOskieast < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '2.200'
   # sha256 '2f0c15ac45948c2256b9d3099925ac07c6fd9138e4b7ed43afe4d4d54dc4a685'
diff --git a/Casks/font-oskiwest.rb b/Casks/font-oskiwest.rb
index 580652948eec..5d281a06cc54 100644
--- a/Casks/font-oskiwest.rb
+++ b/Casks/font-oskiwest.rb
@@ -1,5 +1,5 @@
 class FontOskiwest < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '2.200'
   # sha256 'f8d46508e28668fb3d107998fa79a0eedfab7b002b9ea6b2349035c6a4325232'
diff --git a/Casks/font-oswald.rb b/Casks/font-oswald.rb
index fa7b382d80ee..87d5fd2725d7 100644
--- a/Casks/font-oswald.rb
+++ b/Casks/font-oswald.rb
@@ -1,6 +1,6 @@
 class FontOswald < Cask
   # version '2.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/oswald',
diff --git a/Casks/font-overlock.rb b/Casks/font-overlock.rb
index c6e9c350c3c0..cf18824f63e9 100644
--- a/Casks/font-overlock.rb
+++ b/Casks/font-overlock.rb
@@ -1,6 +1,6 @@
 class FontOverlock < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/overlock',
diff --git a/Casks/font-oxygen.rb b/Casks/font-oxygen.rb
index 36470ce57310..0cea373ac9fa 100644
--- a/Casks/font-oxygen.rb
+++ b/Casks/font-oxygen.rb
@@ -1,6 +1,6 @@
 class FontOxygen < Cask
   # version '0.2.3'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/oxygen',
diff --git a/Casks/font-padauk.rb b/Casks/font-padauk.rb
index 2a2a52898d54..6c15c46e85b7 100644
--- a/Casks/font-padauk.rb
+++ b/Casks/font-padauk.rb
@@ -1,6 +1,6 @@
 class FontPadauk < Cask
   # version '2.8'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/padauk',
diff --git a/Casks/font-passion-one.rb b/Casks/font-passion-one.rb
index f16cb706b7e3..e656e86db6b2 100644
--- a/Casks/font-passion-one.rb
+++ b/Casks/font-passion-one.rb
@@ -1,6 +1,6 @@
 class FontPassionOne < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/passionone',
diff --git a/Casks/font-penuturesu.rb b/Casks/font-penuturesu.rb
index 7edaadec5aab..560e1f06096f 100644
--- a/Casks/font-penuturesu.rb
+++ b/Casks/font-penuturesu.rb
@@ -1,5 +1,5 @@
 class FontPenuturesu < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.i18nguy.com/unicode/penuture.zip',
diff --git a/Casks/font-phetsarath.rb b/Casks/font-phetsarath.rb
index 137e3b7c13f4..0f813b550250 100644
--- a/Casks/font-phetsarath.rb
+++ b/Casks/font-phetsarath.rb
@@ -1,6 +1,6 @@
 class FontPhetsarath < Cask
   # version '1.01'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/phetsarath',
diff --git a/Casks/font-philosopher.rb b/Casks/font-philosopher.rb
index f6cc32dab465..078e9c032783 100644
--- a/Casks/font-philosopher.rb
+++ b/Casks/font-philosopher.rb
@@ -1,6 +1,6 @@
 class FontPhilosopher < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/philosopher',
diff --git a/Casks/font-pitabek.rb b/Casks/font-pitabek.rb
index 41d3b7d1366d..5ef9984ab871 100644
--- a/Casks/font-pitabek.rb
+++ b/Casks/font-pitabek.rb
@@ -1,5 +1,5 @@
 class FontPitabek < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '1.000'
   # sha256 '0ee433091364fc10c9bbcc77fd4007e2d8aa4901e926741256be6b37b848cd6a'
diff --git a/Casks/font-play.rb b/Casks/font-play.rb
index d9f922046508..526df4d61da4 100644
--- a/Casks/font-play.rb
+++ b/Casks/font-play.rb
@@ -1,6 +1,6 @@
 class FontPlay < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/play',
diff --git a/Casks/font-playfair-display-sc.rb b/Casks/font-playfair-display-sc.rb
index 22b04e777652..7bb666bd7753 100644
--- a/Casks/font-playfair-display-sc.rb
+++ b/Casks/font-playfair-display-sc.rb
@@ -1,6 +1,6 @@
 class FontPlayfairDisplaySc < Cask
   # version '1.004'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/playfairdisplaysc',
diff --git a/Casks/font-playfair-display.rb b/Casks/font-playfair-display.rb
index 1968d91e589b..3f180d4c82ad 100644
--- a/Casks/font-playfair-display.rb
+++ b/Casks/font-playfair-display.rb
@@ -1,6 +1,6 @@
 class FontPlayfairDisplay < Cask
   # version '1.004'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/playfairdisplay',
diff --git a/Casks/font-podkova.rb b/Casks/font-podkova.rb
index bfd938a05686..ad82ae8e4da0 100644
--- a/Casks/font-podkova.rb
+++ b/Casks/font-podkova.rb
@@ -1,6 +1,6 @@
 class FontPodkova < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/podkova',
diff --git a/Casks/font-poly.rb b/Casks/font-poly.rb
index 21304bddf34a..8a7011a8b823 100644
--- a/Casks/font-poly.rb
+++ b/Casks/font-poly.rb
@@ -1,6 +1,6 @@
 class FontPoly < Cask
   # version '1.003'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/poly',
diff --git a/Casks/font-prime.rb b/Casks/font-prime.rb
index c3ff792dee81..50dc0f43a4ee 100644
--- a/Casks/font-prime.rb
+++ b/Casks/font-prime.rb
@@ -1,5 +1,5 @@
 class FontPrime < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://fontfabric.com/downfont/prime.zip'
diff --git a/Casks/font-profontx.rb b/Casks/font-profontx.rb
index 58247297169a..a4ee196840ec 100644
--- a/Casks/font-profontx.rb
+++ b/Casks/font-profontx.rb
@@ -1,5 +1,5 @@
 class FontProfontx < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://faisal.com/software/profontx/ProFontX.zip'
diff --git a/Casks/font-puritan.rb b/Casks/font-puritan.rb
index bdf2ed0b739a..f241b07c3edd 100644
--- a/Casks/font-puritan.rb
+++ b/Casks/font-puritan.rb
@@ -1,6 +1,6 @@
 class FontPuritan < Cask
   # version '2.1'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/puritan',
diff --git a/Casks/font-qataban.rb b/Casks/font-qataban.rb
index dcc945fca4cf..8e05b21d8072 100644
--- a/Casks/font-qataban.rb
+++ b/Casks/font-qataban.rb
@@ -1,5 +1,5 @@
 class FontQataban < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '1.0'
   # sha256 '9f3243f1caa97cd8740c87ea892e8dc15d4efac0546df08ce1df2bc6f5fbdf32'
diff --git a/Casks/font-quantico.rb b/Casks/font-quantico.rb
index 5d9576e8e365..f361edf6b22b 100644
--- a/Casks/font-quantico.rb
+++ b/Casks/font-quantico.rb
@@ -1,6 +1,6 @@
 class FontQuantico < Cask
   # version '2.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/quantico',
diff --git a/Casks/font-quattrocento-sans.rb b/Casks/font-quattrocento-sans.rb
index 4864ea7d2270..3ded2c4df079 100644
--- a/Casks/font-quattrocento-sans.rb
+++ b/Casks/font-quattrocento-sans.rb
@@ -1,6 +1,6 @@
 class FontQuattrocentoSans < Cask
   # version '2.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/quattrocentosans',
diff --git a/Casks/font-quattrocento.rb b/Casks/font-quattrocento.rb
index 92f12420b126..a1c2c5923f81 100644
--- a/Casks/font-quattrocento.rb
+++ b/Casks/font-quattrocento.rb
@@ -1,6 +1,6 @@
 class FontQuattrocento < Cask
   # version '2.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/quattrocento',
diff --git a/Casks/font-quicksand.rb b/Casks/font-quicksand.rb
index f5e1b92b13da..3a1d7d725a45 100644
--- a/Casks/font-quicksand.rb
+++ b/Casks/font-quicksand.rb
@@ -1,6 +1,6 @@
 class FontQuicksand < Cask
   # version '001.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/quicksand',
diff --git a/Casks/font-quivira.rb b/Casks/font-quivira.rb
index db2f18413e9f..878f508a3167 100644
--- a/Casks/font-quivira.rb
+++ b/Casks/font-quivira.rb
@@ -1,6 +1,6 @@
 class FontQuivira < Cask
   # version '4.0'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.quivira-font.com/files/Quivira.otf'
diff --git a/Casks/font-radley.rb b/Casks/font-radley.rb
index fdaef7d1f0ef..74ef0b7fcc8f 100644
--- a/Casks/font-radley.rb
+++ b/Casks/font-radley.rb
@@ -1,6 +1,6 @@
 class FontRadley < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/radley',
diff --git a/Casks/font-raleway.rb b/Casks/font-raleway.rb
index 8d0ecefd41ad..9d793dc699e4 100644
--- a/Casks/font-raleway.rb
+++ b/Casks/font-raleway.rb
@@ -1,6 +1,6 @@
 class FontRaleway < Cask
   # version '2.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/raleway',
diff --git a/Casks/font-rambla.rb b/Casks/font-rambla.rb
index 59c1f8d7b311..2341b42cf3d8 100644
--- a/Casks/font-rambla.rb
+++ b/Casks/font-rambla.rb
@@ -1,6 +1,6 @@
 class FontRambla < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/rambla',
diff --git a/Casks/font-redacted.rb b/Casks/font-redacted.rb
index 85f6980d4cde..f70c148f5ff6 100644
--- a/Casks/font-redacted.rb
+++ b/Casks/font-redacted.rb
@@ -1,6 +1,6 @@
 class FontRedacted < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/christiannaths/Redacted-Font/trunk/fonts',
diff --git a/Casks/font-roboto-slab.rb b/Casks/font-roboto-slab.rb
index d2d15622795d..c98d71e8eefd 100644
--- a/Casks/font-roboto-slab.rb
+++ b/Casks/font-roboto-slab.rb
@@ -1,6 +1,6 @@
 class FontRobotoSlab < Cask
   # version '1.100263'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/robotoslab',
diff --git a/Casks/font-rokkitt.rb b/Casks/font-rokkitt.rb
index cfe900fade82..a68098d2af66 100644
--- a/Casks/font-rokkitt.rb
+++ b/Casks/font-rokkitt.rb
@@ -1,6 +1,6 @@
 class FontRokkitt < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/rokkitt',
diff --git a/Casks/font-ropa-sans.rb b/Casks/font-ropa-sans.rb
index 7c38ec2b1b81..82c48669fd31 100644
--- a/Casks/font-ropa-sans.rb
+++ b/Casks/font-ropa-sans.rb
@@ -1,6 +1,6 @@
 class FontRopaSans < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/ropasans',
diff --git a/Casks/font-rosario.rb b/Casks/font-rosario.rb
index 4594ac348506..4a00b960d728 100644
--- a/Casks/font-rosario.rb
+++ b/Casks/font-rosario.rb
@@ -1,6 +1,6 @@
 class FontRosario < Cask
   # version '1.003'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/rosario',
diff --git a/Casks/font-rosarivo.rb b/Casks/font-rosarivo.rb
index d5579b0cb8b1..96952a8acfb4 100644
--- a/Casks/font-rosarivo.rb
+++ b/Casks/font-rosarivo.rb
@@ -1,6 +1,6 @@
 class FontRosarivo < Cask
   # version '1.003'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/rosarivo',
diff --git a/Casks/font-ruda.rb b/Casks/font-ruda.rb
index 8c8a675865a8..63966fe6e57c 100644
--- a/Casks/font-ruda.rb
+++ b/Casks/font-ruda.rb
@@ -1,6 +1,6 @@
 class FontRuda < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/ruda',
diff --git a/Casks/font-rufina.rb b/Casks/font-rufina.rb
index 0105a8bc3d49..0a28d467fad2 100644
--- a/Casks/font-rufina.rb
+++ b/Casks/font-rufina.rb
@@ -1,6 +1,6 @@
 class FontRufina < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/rufina',
diff --git a/Casks/font-sadagolthina.rb b/Casks/font-sadagolthina.rb
index ef9906a1a4e2..d62e1bc6f30b 100644
--- a/Casks/font-sadagolthina.rb
+++ b/Casks/font-sadagolthina.rb
@@ -1,5 +1,5 @@
 class FontSadagolthina < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '1.002'
   # sha256 'aa8b42ccf0cc74a72bb50ab95a45904e6e032e000e09d0c07d93fbee3870c112'
diff --git a/Casks/font-sanchez.rb b/Casks/font-sanchez.rb
index a7963d0c8215..c9d9fcb9a376 100644
--- a/Casks/font-sanchez.rb
+++ b/Casks/font-sanchez.rb
@@ -1,6 +1,6 @@
 class FontSanchez < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/sanchez',
diff --git a/Casks/font-sauce-code-powerline.rb b/Casks/font-sauce-code-powerline.rb
index a7e0557f12fc..c8fdc150f6b2 100644
--- a/Casks/font-sauce-code-powerline.rb
+++ b/Casks/font-sauce-code-powerline.rb
@@ -1,6 +1,6 @@
 class FontSauceCodePowerline < Cask
   # version '1.017'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/Lokaltog/powerline-fonts/trunk/SourceCodePro',
diff --git a/Casks/font-scada.rb b/Casks/font-scada.rb
index fc1ec46b8794..0f14b8d34dd2 100644
--- a/Casks/font-scada.rb
+++ b/Casks/font-scada.rb
@@ -1,6 +1,6 @@
 class FontScada < Cask
   # version '3.005'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/scada',
diff --git a/Casks/font-share.rb b/Casks/font-share.rb
index 30d225b0c6fe..8b5be3d6e48a 100644
--- a/Casks/font-share.rb
+++ b/Casks/font-share.rb
@@ -1,6 +1,6 @@
 class FontShare < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/share',
diff --git a/Casks/font-signika-negative.rb b/Casks/font-signika-negative.rb
index f56e3592ea23..cda513ecec61 100644
--- a/Casks/font-signika-negative.rb
+++ b/Casks/font-signika-negative.rb
@@ -1,6 +1,6 @@
 class FontSignikaNegative < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/signikanegative',
diff --git a/Casks/font-signika.rb b/Casks/font-signika.rb
index 23fc629f8337..4cbbf0b986fc 100644
--- a/Casks/font-signika.rb
+++ b/Casks/font-signika.rb
@@ -1,5 +1,5 @@
 class FontSignika < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://fontfabric.com/downfont/signika.zip'
diff --git a/Casks/font-silent-lips.rb b/Casks/font-silent-lips.rb
index 98a767420022..ed517f9ee595 100644
--- a/Casks/font-silent-lips.rb
+++ b/Casks/font-silent-lips.rb
@@ -1,5 +1,5 @@
 class FontSilentLips < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://www.ffonts.net/Silent_Lips.font.zip'
diff --git a/Casks/font-simonetta.rb b/Casks/font-simonetta.rb
index 815a2d514e7b..4ae56422067d 100644
--- a/Casks/font-simonetta.rb
+++ b/Casks/font-simonetta.rb
@@ -1,6 +1,6 @@
 class FontSimonetta < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/simonetta',
diff --git a/Casks/font-sintony.rb b/Casks/font-sintony.rb
index b079f92d23f0..78f1a040c4e2 100644
--- a/Casks/font-sintony.rb
+++ b/Casks/font-sintony.rb
@@ -1,6 +1,6 @@
 class FontSintony < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/sintony',
diff --git a/Casks/font-skranji.rb b/Casks/font-skranji.rb
index 05b5a1158406..ca683e41f4b1 100644
--- a/Casks/font-skranji.rb
+++ b/Casks/font-skranji.rb
@@ -1,6 +1,6 @@
 class FontSkranji < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/skranji',
diff --git a/Casks/font-sniglet.rb b/Casks/font-sniglet.rb
index f0448b358d3f..9195c7dcd8e4 100644
--- a/Casks/font-sniglet.rb
+++ b/Casks/font-sniglet.rb
@@ -1,6 +1,6 @@
 class FontSniglet < Cask
   # version '2.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/sniglet',
diff --git a/Casks/font-sorts-mill-goudy.rb b/Casks/font-sorts-mill-goudy.rb
index 51b6347db403..7b23f5022e61 100644
--- a/Casks/font-sorts-mill-goudy.rb
+++ b/Casks/font-sorts-mill-goudy.rb
@@ -1,6 +1,6 @@
 class FontSortsMillGoudy < Cask
   # version '003.101'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/sortsmillgoudy',
diff --git a/Casks/font-stardos-stencil.rb b/Casks/font-stardos-stencil.rb
index e1bb91f763ab..e9ac0d9bd4fd 100644
--- a/Casks/font-stardos-stencil.rb
+++ b/Casks/font-stardos-stencil.rb
@@ -1,6 +1,6 @@
 class FontStardosStencil < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/stardosstencil',
diff --git a/Casks/font-stoke.rb b/Casks/font-stoke.rb
index 1b108c4f1248..d08ce2e1cf08 100644
--- a/Casks/font-stoke.rb
+++ b/Casks/font-stoke.rb
@@ -1,6 +1,6 @@
 class FontStoke < Cask
   # version '1.002'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/stoke',
diff --git a/Casks/font-symbola.rb b/Casks/font-symbola.rb
index 1d497ebecef7..9bfecc77d825 100644
--- a/Casks/font-symbola.rb
+++ b/Casks/font-symbola.rb
@@ -1,6 +1,6 @@
 class FontSymbola < Cask
   # version '7.17'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://users.teilar.gr/~g1951d/Symbola.zip'
diff --git a/Casks/font-syncopate.rb b/Casks/font-syncopate.rb
index ced6ba1f5c9e..4124dfbcfc94 100644
--- a/Casks/font-syncopate.rb
+++ b/Casks/font-syncopate.rb
@@ -1,6 +1,6 @@
 class FontSyncopate < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/syncopate',
diff --git a/Casks/font-tai-le-valentinium.rb b/Casks/font-tai-le-valentinium.rb
index 406019f236ea..0d51fd9c32e9 100644
--- a/Casks/font-tai-le-valentinium.rb
+++ b/Casks/font-tai-le-valentinium.rb
@@ -1,5 +1,5 @@
 class FontTaiLeValentinium < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
   # version '1.11'
   # sha256 '6ef203f75f692ded9aef9b80df16c31cfe9ba5dd167b4156d81f655e2dc29ab0'
diff --git a/Casks/font-tangerine.rb b/Casks/font-tangerine.rb
index 18ca06a7bfe6..40a43bce7b0d 100644
--- a/Casks/font-tangerine.rb
+++ b/Casks/font-tangerine.rb
@@ -1,6 +1,6 @@
 class FontTangerine < Cask
   # version '1.3'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/tangerine',
diff --git a/Casks/font-thabit.rb b/Casks/font-thabit.rb
index 2b7effc1d39f..06fb583e6398 100644
--- a/Casks/font-thabit.rb
+++ b/Casks/font-thabit.rb
@@ -1,6 +1,6 @@
 class FontThabit < Cask
   # version '0.01'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/thabit',
diff --git a/Casks/font-tienne.rb b/Casks/font-tienne.rb
index e1d60fd926ea..327bd6a4ed79 100644
--- a/Casks/font-tienne.rb
+++ b/Casks/font-tienne.rb
@@ -1,6 +1,6 @@
 class FontTienne < Cask
   # version '1.000'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/tienne',
diff --git a/Casks/font-tinos.rb b/Casks/font-tinos.rb
index be1ec735f056..7739422b9be8 100644
--- a/Casks/font-tinos.rb
+++ b/Casks/font-tinos.rb
@@ -1,6 +1,6 @@
 class FontTinos < Cask
   # version '1.23'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/tinos',
diff --git a/Casks/font-titillium-web.rb b/Casks/font-titillium-web.rb
index 22102b272be4..b1976ab98cf7 100644
--- a/Casks/font-titillium-web.rb
+++ b/Casks/font-titillium-web.rb
@@ -1,6 +1,6 @@
 class FontTitilliumWeb < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/titilliumweb',
diff --git a/Casks/font-trochut.rb b/Casks/font-trochut.rb
index cad4ee3b347a..9a3f120fb1d9 100644
--- a/Casks/font-trochut.rb
+++ b/Casks/font-trochut.rb
@@ -1,6 +1,6 @@
 class FontTrochut < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/trochut',
diff --git a/Casks/font-ubuntu-mono-powerline.rb b/Casks/font-ubuntu-mono-powerline.rb
index 9bb77d59dee3..0dd9ac6723f7 100644
--- a/Casks/font-ubuntu-mono-powerline.rb
+++ b/Casks/font-ubuntu-mono-powerline.rb
@@ -1,6 +1,6 @@
 class FontUbuntuMonoPowerline < Cask
   # version '0.80'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/Lokaltog/powerline-fonts/trunk/UbuntuMono',
diff --git a/Casks/font-unkempt.rb b/Casks/font-unkempt.rb
index fbe405a097f7..1dd35f690fd7 100644
--- a/Casks/font-unkempt.rb
+++ b/Casks/font-unkempt.rb
@@ -1,6 +1,6 @@
 class FontUnkempt < Cask
   # version '1.001'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/unkempt',
diff --git a/Casks/font-volkhov.rb b/Casks/font-volkhov.rb
index 6a0b627ecc8d..067ee0782e09 100644
--- a/Casks/font-volkhov.rb
+++ b/Casks/font-volkhov.rb
@@ -1,6 +1,6 @@
 class FontVolkhov < Cask
   # version '1.010'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/volkhov',
diff --git a/Casks/font-waltograph.rb b/Casks/font-waltograph.rb
index a5bc345a260f..3539346b0e47 100644
--- a/Casks/font-waltograph.rb
+++ b/Casks/font-waltograph.rb
@@ -1,6 +1,6 @@
 class FontWaltograph < Cask
   # version '4.2'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://mickeyavenue.com/fonts/download/waltograph.zip'
diff --git a/Casks/font-yanone-kaffeesatz.rb b/Casks/font-yanone-kaffeesatz.rb
index 45fd01de7a15..df9a7d1908ee 100644
--- a/Casks/font-yanone-kaffeesatz.rb
+++ b/Casks/font-yanone-kaffeesatz.rb
@@ -1,6 +1,6 @@
 class FontYanoneKaffeesatz < Cask
   # version '1.100'
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'https://github.com/w0ng/googlefontdirectory/trunk/fonts/yanonekaffeesatz',