diff --git a/Gemfile.lock b/Gemfile.lock
index 5fe8e0e..69276b2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -50,7 +50,7 @@ GEM
     jquery-rails (2.0.2)
       railties (>= 3.2.0, < 5.0)
       thor (~> 0.14)
-    json (1.6.6)
+    json (1.8.6)
     less (2.1.0)
       commonjs (~> 0.2.0)
       therubyracer (~> 0.10.0)