diff --git a/Gemfile.lock b/Gemfile.lock
index de90b4a..6e7d066 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -51,6 +51,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.3.3)
+    concurrent-ruby (1.1.10)
     cucumber (1.2.1)
       builder (>= 2.1.2)
       diff-lcs (>= 1.1.3)
@@ -90,7 +91,8 @@ GEM
     guard-rspec (1.1.0)
       guard (>= 1.1)
     hike (1.2.1)
-    i18n (0.6.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     journey (1.0.3)
     jquery-rails (2.0.2)
       railties (>= 3.2.0, < 5.0)
@@ -169,7 +171,6 @@ GEM
       rubyzip
     sendgrid (1.0.1)
       json
-      json
     sprockets (2.1.3)
       hike (~> 1.2)
       rack (~> 1.0)