diff --git a/README.md b/README.md
index 0009e43..6227210 100644
--- a/README.md
+++ b/README.md
@@ -394,6 +394,7 @@ https://github.com/sdras/awesome-actions/workflows/Lint%20Awesome%20List/badge.s
 - [GitHub Actions for Hugo extended](https://github.com/peaceiris/actions-hugo)
 - [Generate OG Image](https://github.com/BoyWithSilverWings/generate-og-image) - Generate customisable open graph images from Markdown files.
 - [Runs Lighthouse and posts results to PRs and Slack](https://github.com/foo-software/lighthouse-check-action)
+- [GitHub Actions for mdBook](https://github.com/peaceiris/actions-mdbook)
 
 ### Internet of Things (IOT)