diff --git a/Gemfile.lock b/Gemfile.lock
index 22307ad..e148f14 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -65,7 +65,7 @@ GEM
     rspec-expectations (2.14.3)
       diff-lcs (>= 1.1.3, < 2.0)
     rspec-mocks (2.14.3)
-    rubyzip (1.0.0)
+    rubyzip (1.3.0)
     simplecov (0.7.1)
       multi_json (~> 1.0)
       simplecov-html (~> 0.7.1)