diff --git a/data/Dockerfiles/netfilter/Dockerfile b/data/Dockerfiles/netfilter/Dockerfile
index 57dbd6e9..70cd49c1 100644
--- a/data/Dockerfiles/netfilter/Dockerfile
+++ b/data/Dockerfiles/netfilter/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.21
+FROM alpine:3.23
 
 LABEL maintainer = "The Infrastructure Company GmbH <info@servercow.de>"
 
@@ -40,4 +40,4 @@ COPY ./docker-entrypoint.sh /app/
 
 RUN chmod +x /app/docker-entrypoint.sh
 
-CMD ["/bin/sh", "-c", "/app/docker-entrypoint.sh"]
\ No newline at end of file
+CMD ["/bin/sh", "-c", "/app/docker-entrypoint.sh"]