diff --git a/Gemfile.lock b/Gemfile.lock
index 288a46c..f609913 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,7 +8,7 @@ GEM
       rubyzip
     review-peg (0.2.2)
     rouge (3.1.1)
-    rubyzip (1.2.1)
+    rubyzip (2.3.0)
 
 PLATFORMS
   ruby