diff --git a/package.json b/package.json
index 6d86e68..b186df7 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
     "tildify": "^2.0.0",
     "twitter-lite": "^0.13.0",
     "update-notifier": "^4.1.0",
-    "xlsx": "^0.16.2"
+    "xlsx": "^0.17.0"
   },
   "devDependencies": {
     "ava": "^3.9.0",
diff --git a/yarn.lock b/yarn.lock
index 4d75545..2dd0478 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1607,6 +1607,11 @@ fastq@^1.6.0:
   dependencies:
     reusify "^1.0.4"
 
+fflate@^0.3.8:
+  version "0.3.11"
+  resolved "https://registry.yarnpkg.com/fflate/-/fflate-0.3.11.tgz#2c440d7180fdeb819e64898d8858af327b042a5d"
+  integrity sha512-Rr5QlUeGN1mbOHlaqcSYMKVpPbgLy0AWT/W0EHxA6NGI12yO1jpoui2zBBvU2G824ltM6Ut8BFgfHSBGfkmS0A==
+
 figures@^3.0.0, figures@^3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/figures/-/figures-3.2.0.tgz#625c18bd293c604dc4a8ddb2febf0c88341746af"
@@ -3622,10 +3627,10 @@ sprintf-js@~1.0.2:
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
   integrity sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=
 
-ssf@~0.10.3:
-  version "0.10.3"
-  resolved "https://registry.yarnpkg.com/ssf/-/ssf-0.10.3.tgz#8eae1fc29c90a552e7921208f81892d6f77acb2b"
-  integrity sha512-pRuUdW0WwyB2doSqqjWyzwCD6PkfxpHAHdZp39K3dp/Hq7f+xfMwNAWIi16DyrRg4gg9c/RvLYkJTSawTPTm1w==
+ssf@~0.11.2:
+  version "0.11.2"
+  resolved "https://registry.yarnpkg.com/ssf/-/ssf-0.11.2.tgz#0b99698b237548d088fc43cdf2b70c1a7512c06c"
+  integrity sha512-+idbmIXoYET47hH+d7dfm2epdOMUDjqcB4648sTZ+t2JwoyBFL/insLfB/racrDmsKB3diwsDA696pZMieAC5g==
   dependencies:
     frac "~1.1.2"
 
@@ -4045,6 +4050,11 @@ word-wrap@~1.2.3:
   resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"
   integrity sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==
 
+word@~0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/word/-/word-0.3.0.tgz#8542157e4f8e849f4a363a288992d47612db9961"
+  integrity sha512-OELeY0Q61OXpdUfTp+oweA/vtLVg5VDOXh+3he3PNzLGG/y0oylSOC1xRVj0+l4vQ3tj/bB1HVHv1ocXkQceFA==
+
 wordwrap@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
@@ -4086,10 +4096,10 @@ xdg-basedir@^4.0.0:
   resolved "https://registry.yarnpkg.com/xdg-basedir/-/xdg-basedir-4.0.0.tgz#4bc8d9984403696225ef83a1573cbbcb4e79db13"
   integrity sha512-PSNhEJDejZYV7h50BohL09Er9VaIefr2LMAf3OEmpCkjOi34eYyQYAXUTjEQtZJTKcF0E2UKTh+osDLsgNim9Q==
 
-xlsx@^0.16.2:
-  version "0.16.2"
-  resolved "https://registry.yarnpkg.com/xlsx/-/xlsx-0.16.2.tgz#84043c36b76ddd776b3b49973530303b21894266"
-  integrity sha512-XTqOy7YpCUtGbvCYaCh1t1RsZ/y8cSCbZCOYtqqZ4/EmHkyv+/ghxmCvvR8yc4Tn5fhny+3j7voKwJaRlffNKA==
+xlsx@^0.17.0:
+  version "0.17.0"
+  resolved "https://registry.yarnpkg.com/xlsx/-/xlsx-0.17.0.tgz#028176a0140967dcee1817d221678461e47481c8"
+  integrity sha512-bZ36FSACiAyjoldey1+7it50PMlDp1pcAJrZKcVZHzKd8BC/z6TQ/QAN8onuqcepifqSznR6uKnjPhaGt6ig9A==
   dependencies:
     adler-32 "~1.2.0"
     cfb "^1.1.4"
@@ -4097,8 +4107,10 @@ xlsx@^0.16.2:
     commander "~2.17.1"
     crc-32 "~1.2.0"
     exit-on-epipe "~1.0.1"
-    ssf "~0.10.3"
+    fflate "^0.3.8"
+    ssf "~0.11.2"
     wmf "~1.0.1"
+    word "~0.3.0"
 
 xregexp@^4.3.0:
   version "4.3.0"