diff --git a/Gemfile.lock b/Gemfile.lock
index c014106..0c28cfe 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -43,11 +43,13 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.9.1.1)
+    concurrent-ruby (1.1.10)
     elif (0.1.0)
     erubis (2.7.0)
     execjs (2.5.2)
     hike (1.2.3)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jbuilder (1.5.3)
       activesupport (>= 3.0.0)
       multi_json (>= 1.2.0)