diff --git a/Gemfile.lock b/Gemfile.lock
index ab9890a..8e19222 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -248,7 +248,7 @@ GEM
     ruby-openid-apps-discovery (1.2.0)
       ruby-openid (>= 2.1.7)
     rubyntlm (0.1.1)
-    rubyzip (0.9.4)
+    rubyzip (1.3.0)
     sass (3.1.7)
     sass-rails (3.1.3)
       actionpack (~> 3.1.0)