diff --git a/Gemfile.lock b/Gemfile.lock
index e1bd8809..8f0c0245 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -57,7 +57,7 @@ GEM
       jekyll (~> 3.3)
     jekyll-watch (2.1.2)
       listen (~> 3.0)
-    json (2.1.0)
+    json (2.3.1)
     kramdown (1.17.0)
     liquid (4.0.1)
     listen (3.1.5)