diff --git a/Gemfile.lock b/Gemfile.lock
index b3e650b..6c8439d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -121,7 +121,8 @@ GEM
     guard-rubocop (1.2.0)
       guard (~> 2.0)
       rubocop (~> 0.20)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     ice_nine (0.11.2)
     inch (0.7.1)
       pry