diff --git a/Gemfile.lock b/Gemfile.lock
index 9011dcb..7d3088f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -142,7 +142,7 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    json (2.0.4)
+    json (2.1.0)
     kgio (2.11.0)
     launchy (2.4.3)
       addressable (~> 2.3)