diff --git a/Gemfile.lock b/Gemfile.lock
index f3aa398..22439da 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -97,7 +97,7 @@ GEM
     jquery-rails (2.1.3)
       railties (>= 3.1.0, < 5.0)
       thor (~> 0.14)
-    json (1.7.5)
+    json (1.8.6)
     launchy (2.1.2)
       addressable (~> 2.3)
     libwebsocket (0.1.5)