diff --git a/rails/Gemfile.lock b/rails/Gemfile.lock
index 6ce9722..33aeadd 100644
--- a/rails/Gemfile.lock
+++ b/rails/Gemfile.lock
@@ -115,7 +115,7 @@ GEM
       thor (>= 0.14, < 2.0)
     jquery-ui-rails (5.0.5)
       railties (>= 3.2.16)
-    json (2.1.0)
+    json (2.3.1)
     kaminari (1.1.1)
       activesupport (>= 4.1.0)
       kaminari-actionview (= 1.1.1)