diff --git a/Gemfile.lock b/Gemfile.lock
index dd0081e..54b4238 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -129,7 +129,7 @@ GEM
       railties (~> 3.0)
       rspec (~> 2.7.0)
     ruby_gntp (0.3.4)
-    rubyzip (0.9.5)
+    rubyzip (1.3.0)
     sass (3.1.12)
     sass-rails (3.1.5)
       actionpack (~> 3.1.0)