diff --git a/Gemfile.lock b/Gemfile.lock
index e765892..3eb835a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -313,7 +313,7 @@ GEM
       thor (>= 0.14, < 2.0)
     jquery-ui-rails (6.0.1)
       railties (>= 3.2.16)
-    json (2.2.0)
+    json (2.3.1)
     jwt (2.2.1)
     kaminari (1.1.1)
       activesupport (>= 4.1.0)