diff --git a/Gemfile.lock b/Gemfile.lock
index 9bcefd8..841b59c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -271,7 +271,7 @@ GEM
     ipaddress (0.8.3)
     jbuilder (2.9.1)
       activesupport (>= 4.2.0)
-    json (2.2.0)
+    json (2.3.1)
     jwt (2.2.1)
     kaminari (0.17.0)
       actionpack (>= 3.0.0)