diff --git a/Gemfile.lock b/Gemfile.lock
index 55a98bb..cb6c6d9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -87,7 +87,7 @@ GEM
       jekyll (>= 3.7, < 5.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    json (2.20.0)
+    json (2.21.2)
     kramdown (2.4.0)
       rexml
     kramdown-parser-gfm (1.1.0)