diff --git a/rails/Gemfile.lock b/rails/Gemfile.lock
index ca8d473..94857cb 100644
--- a/rails/Gemfile.lock
+++ b/rails/Gemfile.lock
@@ -280,7 +280,7 @@ GEM
     jbuilder (2.7.0)
       activesupport (>= 4.2.0)
       multi_json (>= 1.2)
-    json (2.1.0)
+    json (2.3.1)
     jsonapi-renderer (0.2.0)
     kaminari (1.1.1)
       activesupport (>= 4.1.0)