diff --git a/Gemfile.lock b/Gemfile.lock
index 4bd8e55..7389546 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -37,6 +37,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.4.0)
+    concurrent-ruby (1.1.5)
     erubis (2.7.0)
     execjs (1.4.0)
       multi_json (~> 1.0)
@@ -45,7 +46,8 @@ GEM
     hashie (1.2.0)
     hike (1.2.1)
     httpauth (0.2.0)
-    i18n (0.6.1)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     journey (1.0.4)
     jquery-rails (2.1.3)
       railties (>= 3.1.0, < 5.0)