diff --git a/Gemfile.lock b/Gemfile.lock
index 5fdc557..d581037 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -26,7 +26,7 @@ GEM
       sass (~> 3.4)
     jekyll-watch (1.5.0)
       listen (~> 3.0, < 3.1)
-    json (1.8.3)
+    json (2.3.1)
     kramdown (1.11.1)
     liquid (3.0.6)
     listen (3.0.8)