diff --git a/Gemfile.lock b/Gemfile.lock
index e279742..9c850e2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -228,7 +228,7 @@ GEM
     jbuilder (2.7.0)
       activesupport (>= 4.2.0)
       multi_json (>= 1.2)
-    json (2.1.0)
+    json (2.5.1)
     kwalify (0.7.2)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)