diff --git a/Gemfile.lock b/Gemfile.lock
index 1402af9..7e9c0ca 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -35,6 +35,7 @@ GEM
       columnize (= 0.9.0)
     coderay (1.1.0)
     columnize (0.9.0)
+    concurrent-ruby (1.1.9)
     crass (1.0.6)
     daemons (1.2.2)
     diff-lcs (1.2.5)
@@ -43,7 +44,8 @@ GEM
     eventmachine (1.0.7)
     faker (1.4.3)
       i18n (~> 0.5)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     json (1.8.2)
     loofah (2.4.0)
       crass (~> 1.0.2)