diff --git a/Gemfile.lock b/Gemfile.lock
index 9933355e503..8e67d1acb79 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -154,7 +154,7 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    json (2.3.1)
+    json (2.4.0)
     json-schema (2.8.1)
       addressable (>= 2.4)
     jwt (2.2.2)