diff --git a/Gemfile.lock b/Gemfile.lock
index 5a10b6f..71812e0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -42,12 +42,14 @@ GEM
     builder (2.1.2)
     childprocess (0.1.7)
       ffi (~> 0.6.3)
+    concurrent-ruby (1.1.10)
     diff-lcs (1.1.2)
     erubis (2.6.6)
       abstract (>= 1.0.0)
     ffi (0.6.3)
       rake (>= 0.8.7)
-    i18n (0.5.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     json_pure (1.5.1)
     mime-types (1.16)
     nokogiri (1.4.4)