diff --git a/Dockerfile b/Dockerfile
index c613645..6ac94b3 100755
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,11 @@
-FROM debian:bullseye-slim
-MAINTAINER Christian Busch <hello@chbus.ch>
+FROM debian:bookworm-slim
+
+LABEL org.opencontainers.image.title="NSD Docker"
+LABEL org.opencontainers.image.description="NSD (Name Server Daemon) in a Docker container"
+LABEL org.opencontainers.image.source="https://git.debilux.org/chris/docker-nsd"
+LABEL org.opencontainers.image.url="https://git.debilux.org/chris/docker-nsd"
+LABEL org.opencontainers.image.licenses="MIT"
+LABEL org.opencontainers.image.authors="Christian Busch <hello@chbus.ch>"
 
 # Install NSD and required tools
 RUN apt-get update && \