diff --git a/README.md b/README.md
index 7b97b46..609b3ce 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,5 @@
 # docker-check-base-image-updated
+
 A Github Action that checks for Docker base image updates. Leverages skopeo and jq.
+
+Based on [lucacome's docker-image-update-checker](https://github.com/lucacome/docker-image-update-checker).