diff --git a/server/Gemfile.lock b/server/Gemfile.lock
index 433d5c7..7fdc85c 100644
--- a/server/Gemfile.lock
+++ b/server/Gemfile.lock
@@ -22,6 +22,7 @@ GEM
     clean_test (1.0.0)
       faker
     coderay (1.0.8)
+    concurrent-ruby (1.1.10)
     em-synchrony (1.0.2)
       eventmachine (>= 1.0.0.beta.1)
     em-websocket (0.3.8)
@@ -52,7 +53,8 @@ GEM
       virtus
     hashie (1.2.0)
     http_parser.rb (0.5.3)
-    i18n (0.6.1)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     log4r (1.1.10)
     method_source (0.8.1)
     multi_json (1.5.0)