diff --git a/README.md b/README.md
index 238c38f..671720e 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ up a local Jekyll instance and point your browser to [localhost:4000](http://loc
 docker run --rm \
      --volume="$PWD:/srv/jekyll" \
      -p "4000:4000" \
-     -it jekyll/jekyll:3.8 \
+     -it jekyll/jekyll:4.2.2 \
      jekyll serve --watch
 ```