diff --git a/Gemfile.lock b/Gemfile.lock
index 7751ce4..e8db8ae 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -49,6 +49,7 @@ GEM
     arel (6.0.3)
     builder (3.2.2)
     concurrent-ruby (1.0.1)
+    crass (1.0.6)
     diff-lcs (1.2.5)
     docile (1.1.5)
     erubis (2.7.0)
@@ -56,15 +57,16 @@ GEM
       activesupport (>= 4.1.0)
     i18n (0.7.0)
     json (1.8.3)
-    loofah (2.0.3)
+    loofah (2.19.1)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
     mime-types (2.99.1)
-    mini_portile2 (2.0.0)
+    mini_portile2 (2.1.0)
     minitest (5.8.4)
-    nokogiri (1.6.7.2)
-      mini_portile2 (~> 2.0.0.rc2)
+    nokogiri (1.6.8.1)
+      mini_portile2 (~> 2.1.0)
     rack (1.6.4)
     rack-test (0.6.3)
       rack (>= 1.0)