diff --git a/Gemfile.lock b/Gemfile.lock
index 5a0537c..7484673 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,8 +13,10 @@ GEM
     activesupport (3.0.5)
     arel (2.0.9)
     builder (2.1.2)
+    concurrent-ruby (1.1.5)
     diff-lcs (1.1.2)
-    i18n (0.5.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     rspec (2.5.0)
       rspec-core (~> 2.5.0)
       rspec-expectations (~> 2.5.0)