diff --git a/Gemfile.lock b/Gemfile.lock
index 614a3c1..85c2cd8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -28,7 +28,7 @@ GEM
     diff-lcs (1.2.5)
     erubis (2.7.0)
     execjs (2.5.2)
-    json (1.8.2)
+    json (2.3.0)
     multi_json (1.11.0)
     rack (1.6.0)
     rack-protection (1.5.3)