diff --git a/docker/Dockerfile.amd64 b/docker/Dockerfile.amd64
index 1f3f6d75..a2c47bc7 100644
--- a/docker/Dockerfile.amd64
+++ b/docker/Dockerfile.amd64
@@ -1,4 +1,4 @@
-FROM alpine:3.19@sha256:e5d0aea7f7d2954678a9a6269ca2d06e06591881161961ea59e974dff3f12377
+FROM alpine:3.21@sha256:a8560b36e8b8210634f77d9f7f9efd7ffa463e380b75e2e74aff4511df3ef88c
 
 LABEL maintainer="ownCloud DevOps <devops@owncloud.com>"
 LABEL org.opencontainers.image.authors="ownCloud DevOps <devops@owncloud.com>"