diff --git a/Gemfile.lock b/Gemfile.lock
index 9e90ca5..b936cf8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -159,7 +159,7 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    json (2.7.6)
+    json (2.8.1)
     logger (1.6.1)
     loofah (2.23.1)
       crass (~> 1.0.2)