diff --git a/Gemfile.lock b/Gemfile.lock
index 91c3402..2fb0f12 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -149,7 +149,7 @@ GEM
       thor (>= 0.14, < 2.0)
     jquery-ui-rails (6.0.1)
       railties (>= 3.2.16)
-    json (2.1.0)
+    json (2.3.1)
     jwt (2.1.0)
     jwt_sessions (2.2.2)
       jwt (>= 2.1, < 3)