diff --git a/Dockerfile b/Dockerfile
index 72e1d22..d99c011 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,6 +3,7 @@ FROM python:3.12-slim
 LABEL "maintainer" "Sviatoslav Sydorenko <wk+pypa@sydorenko.org.ua>"
 LABEL "repository" "https://github.com/pypa/gh-action-pypi-publish"
 LABEL "homepage" "https://github.com/pypa/gh-action-pypi-publish"
+LABEL "org.opencontainers.image.source" "https://github.com/pypa/gh-action-pypi-publish"
 
 ENV PYTHONDONTWRITEBYTECODE 1
 ENV PYTHONUNBUFFERED 1