diff --git a/Gemfile.lock b/Gemfile.lock
index d232a28..c8f6de0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -298,7 +298,7 @@ GEM
       turbolinks
     jquery-ui-rails (5.0.5)
       railties (>= 3.2.16)
-    json (2.2.0)
+    json (2.3.1)
     jwt (2.2.1)
     listen (3.0.8)
       rb-fsevent (~> 0.9, >= 0.9.4)