diff --git a/Gemfile.lock b/Gemfile.lock
index c5eb50d..beac167 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -60,7 +60,7 @@ GEM
       nokogiri (~> 1.12)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    json (2.20.0)
+    json (2.21.2)
     kramdown (2.5.2)
       rexml (>= 3.4.4)
     kramdown-parser-gfm (1.1.0)