diff --git a/mailit/Gemfile.lock b/mailit/Gemfile.lock
index 6a32aa6..3e48a96 100644
--- a/mailit/Gemfile.lock
+++ b/mailit/Gemfile.lock
@@ -40,13 +40,15 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.2.0)
+    concurrent-ruby (1.1.5)
     css_parser (1.2.5)
       addressable
     erubis (2.7.0)
     execjs (1.2.13)
       multi_json (~> 1.0)
     hike (1.2.1)
-    i18n (0.6.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jquery-rails (1.0.19)
       railties (~> 3.0)
       thor (~> 0.14)