diff --git a/Gemfile.lock b/Gemfile.lock
index c67af31..5a0ca47 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -101,7 +101,7 @@ GEM
       gemoji (~> 2.0)
       html-pipeline (~> 2.2)
       jekyll (>= 3.0)
-    json (1.8.3)
+    json (2.1.0)
     kramdown (1.11.1)
     liquid (3.0.6)
     listen (3.0.6)