diff --git a/Gemfile.lock b/Gemfile.lock
index 00412b2..65e3717 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -139,7 +139,7 @@ GEM
     jquery-ui-rails (4.0.4)
       jquery-rails
       railties (>= 3.1.0)
-    json (2.2.0)
+    json (2.3.1)
     jwt (2.1.0)
     kaminari (0.14.1)
       actionpack (>= 3.0.0)