diff --git a/Gemfile.lock b/Gemfile.lock
index e7e9dcc..33c7044 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -60,6 +60,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.6.3)
+    concurrent-ruby (1.1.9)
     curb (0.8.5)
     debug_inspector (0.0.2)
     diff-lcs (1.2.4)
@@ -105,7 +106,8 @@ GEM
       json (~> 1.8)
       multi_xml (>= 0.5.2)
     httpauth (0.2.0)
-    i18n (0.6.5)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     journey (1.0.4)
     jquery-rails (3.0.4)
       railties (>= 3.0, < 5.0)