diff --git a/Gemfile.lock b/Gemfile.lock
index 953e702..db58206 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -48,7 +48,7 @@ GEM
     jquery-rails (2.0.2)
       railties (>= 3.2.0, < 5.0)
       thor (~> 0.14)
-    json (1.7.4)
+    json (1.8.6)
     libv8 (3.3.10.4)
     mail (2.4.4)
       i18n (>= 0.4.0)