diff --git a/Gemfile.lock b/Gemfile.lock
index 7d5e564..66a1922 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -212,7 +212,7 @@ GEM
     rouge (2.2.1)
     ruby-enum (0.7.1)
       i18n
-    rubyzip (1.2.1)
+    rubyzip (2.3.0)
     safe_yaml (1.0.4)
     sass (3.5.4)
       sass-listen (~> 4.0.0)