diff --git a/Gemfile.lock b/Gemfile.lock
index 53b5717..9203aee 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -148,7 +148,7 @@ GEM
     rdoc (3.12)
       json (~> 1.4)
     ruby-hmac (0.4.0)
-    rubyzip (0.9.9)
+    rubyzip (1.3.0)
     sass (3.2.5)
     sass-rails (3.2.6)
       railties (~> 3.2.0)