diff --git a/Gemfile.lock b/Gemfile.lock
index e0d6a31e..a572fa38 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -86,6 +86,7 @@ GEM
     concord (0.1.5)
       adamantium (~> 0.2.0)
       equalizer (~> 0.0.9)
+    concurrent-ruby (1.1.10)
     cucumber (1.3.20)
       builder (>= 2.1.2)
       diff-lcs (>= 1.1.3)
@@ -131,7 +132,8 @@ GEM
     hirb (0.7.3)
     http-cookie (1.0.2)
       domain_name (~> 0.5)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     ice_nine (0.11.1)
     jquery-rails (4.0.4)
       rails-dom-testing (~> 1.0)