diff --git a/Gemfile.lock b/Gemfile.lock
index c3a112a..c04d2c6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -22,7 +22,7 @@ GEM
     arel (2.2.1)
     builder (3.0.0)
     i18n (0.6.0)
-    json (1.4.6)
+    json (2.3.1)
     mocha (0.9.8)
       rake
     multi_json (1.0.3)