diff --git a/Gemfile.lock b/Gemfile.lock
index fac4a81..0deca24 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -58,7 +58,7 @@ GEM
     jquery-rails (2.0.1)
       railties (>= 3.2.0, < 5.0)
       thor (~> 0.14)
-    json (1.6.5)
+    json (1.8.6)
     mail (2.4.3)
       i18n (>= 0.4.0)
       mime-types (~> 1.16)