diff --git a/Gemfile.lock b/Gemfile.lock
index 182a315..f4fe5b1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -63,6 +63,7 @@ GEM
       execjs
     coffee-script-source (1.7.1)
     colorize (0.5.8)
+    concurrent-ruby (1.1.10)
     coveralls (0.6.7)
       colorize
       multi_json (~> 1.3)
@@ -76,7 +77,8 @@ GEM
     execjs (2.0.1)
     ffi2-generators (0.1.1)
     hike (1.2.3)
-    i18n (0.6.9)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jdbc-sqlite3 (3.7.2.1)
     jquery-rails (3.1.1)
       railties (>= 3.0, < 5.0)