diff --git a/Gemfile.lock b/Gemfile.lock
index ce4063d..8650844 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -118,7 +118,7 @@ GEM
       rspec-core (~> 2.13.0)
       rspec-expectations (~> 2.13.0)
       rspec-mocks (~> 2.13.0)
-    rubyzip (0.9.9)
+    rubyzip (2.0.0)
     sass (3.2.9)
     sass-rails (4.0.0.rc2)
       railties (>= 4.0.0.beta, < 5.0)