diff --git a/Gemfile.lock b/Gemfile.lock
index 7291a84..d8a6828 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -16,6 +16,7 @@ GEM
     coffee-script-source (1.10.0)
     colorator (0.1)
     colored (1.2)
+    concurrent-ruby (1.1.10)
     em-websocket (0.5.1)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
@@ -85,7 +86,8 @@ GEM
       typhoeus (~> 0.7)
       yell (~> 2.0)
     http_parser.rb (0.6.0)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jekyll (3.0.3)
       colorator (~> 0.1)
       jekyll-sass-converter (~> 1.0)