diff --git a/Gemfile.lock b/Gemfile.lock
index 8078ecc..1c8bddd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -50,9 +50,11 @@ GEM
       railties (~> 3.0)
       thor (~> 0.14)
     cocaine (0.2.1)
+    concurrent-ruby (1.1.10)
     erubis (2.7.0)
     hike (1.2.1)
-    i18n (0.6.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     journey (1.0.4)
     jquery-rails (2.0.2)
       railties (>= 3.2.0, < 5.0)