diff --git a/Gemfile.lock b/Gemfile.lock
index a50799c..3206794 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -187,7 +187,7 @@ GEM
     jquery-turbolinks (2.1.0)
       railties (>= 3.1.0)
       turbolinks
-    json (2.1.0)
+    json (2.5.1)
     jwt (1.5.6)
     kaminari (1.2.0)
       activesupport (>= 4.1.0)