diff --git a/Gemfile.lock b/Gemfile.lock
index 980de72..b7fb9b5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -63,6 +63,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.9.1.1)
+    concurrent-ruby (1.1.10)
     diff-lcs (1.2.5)
     docile (1.1.5)
     erubis (2.7.0)
@@ -74,7 +75,8 @@ GEM
       railties (>= 3.0.0)
     globalid (0.3.5)
       activesupport (>= 4.1.0)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jquery-rails (4.0.4)
       rails-dom-testing (~> 1.0)
       railties (>= 4.2.0)