diff --git a/Gemfile.lock b/Gemfile.lock
index 32bb01e01..6d786c115 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -193,7 +193,7 @@ GEM
       json (~> 1.4)
     rmagick (2.13.2)
     ruby-rc4 (0.1.5)
-    rubyzip (1.2.1)
+    rubyzip (1.3.0)
     ruport (1.7.1)
       pdf-writer (= 1.1.8)
       prawn (= 0.12.0)