diff --git a/Gemfile.lock b/Gemfile.lock
index 95c236f..9ee42c5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -41,6 +41,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.3.3)
+    concurrent-ruby (1.1.10)
     crummy (1.6.0)
     domain_name (0.5.3)
       unf (~> 0.0.3)
@@ -51,7 +52,8 @@ GEM
     hike (1.2.1)
     hoe (3.0.7)
       rake (~> 0.8)
-    i18n (0.6.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     i18n_generators (1.2.1)
       mechanize
       rails (>= 3.0.0)