diff --git a/Gemfile.lock b/Gemfile.lock
index 563d1b8..83574b6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -68,6 +68,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.9.1.1)
+    concurrent-ruby (1.1.10)
     connection_pool (2.2.0)
     database_cleaner (1.4.1)
     diff-lcs (1.2.5)
@@ -100,7 +101,8 @@ GEM
       rspec (>= 2.99.0, < 4.0)
     http-cookie (1.0.2)
       domain_name (~> 0.5)
-    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)