diff --git a/Gemfile.lock b/Gemfile.lock
index ca4014c..78c8882 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,7 +47,7 @@ GEM
       sass (~> 3.4)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    json (2.1.0)
+    json (2.3.1)
     kramdown (1.17.0)
     liquid (4.0.3)
     listen (3.1.5)