diff --git a/Gemfile.lock b/Gemfile.lock
index b7404fc..b58d3c2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -59,6 +59,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.3.3)
+    concurrent-ruby (1.1.5)
     crack (0.3.1)
     cucumber (1.2.1)
       builder (>= 2.1.2)
@@ -129,7 +130,8 @@ GEM
       haml (~> 3.1)
       railties (>= 3.1, < 4.1)
     hike (1.2.1)
-    i18n (0.6.1)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     journey (1.0.4)
     jquery-rails (2.1.2)
       railties (>= 3.1.0, < 5.0)