diff --git a/Gemfile.lock b/Gemfile.lock
index ac657d9..08f540a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -69,7 +69,7 @@ GEM
     jquery-rails (2.1.1)
       railties (>= 3.1.0, < 5.0)
       thor (~> 0.14)
-    json (1.7.5)
+    json (1.8.6)
     kgio (2.7.4)
     less (2.2.1)
       commonjs (~> 0.2.6)