diff --git a/Gemfile.lock b/Gemfile.lock
index 1c6516b..3450b0d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -46,6 +46,7 @@ GEM
     arel (6.0.3)
     builder (3.2.2)
     coderay (1.1.0)
+    concurrent-ruby (1.1.10)
     erubis (2.7.0)
     execjs (2.2.2)
     globalid (0.3.6)
@@ -72,7 +73,8 @@ GEM
       haml (>= 4.0.0.rc.1)
       hpricot (~> 0.8.6)
       ruby_parser (~> 3.1.1)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     json (1.8.3)
     loofah (2.0.3)
       nokogiri (>= 1.5.9)