diff --git a/Gemfile.lock b/Gemfile.lock
index 5ea7f3a..3db0e4c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -173,7 +173,7 @@ GEM
     i18n (0.7.0)
     inflecto (0.0.2)
     ipaddress (0.8.3)
-    json (2.2.0)
+    json (2.3.1)
     mime-types (1.25.1)
     mini_portile2 (2.3.0)
     multi_json (1.11.2)