diff --git a/Gemfile.lock b/Gemfile.lock
index ea586f9..905e6b3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,8 +9,10 @@ GEM
     activesupport (3.2.8)
       i18n (~> 0.6)
       multi_json (~> 1.0)
+    concurrent-ruby (1.1.5)
     diff-lcs (1.1.3)
-    i18n (0.6.1)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     metaclass (0.0.1)
     minitest (2.12.1)
     mocha (0.12.6)