diff --git a/Gemfile.lock b/Gemfile.lock
index 7668a6a96..fefc3de18 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -146,7 +146,7 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    json (2.1.0)
+    json (2.5.1)
     jwt (2.1.0)
     kaminari (1.1.1)
       activesupport (>= 4.1.0)