From f09e192ed9ced4586d8504661a48a65d2228b67a Mon Sep 17 00:00:00 2001
From: Deluan <deluan@navidrome.org>
Date: Mon, 20 Jul 2026 11:00:19 -0400
Subject: [PATCH] build: upgrade Alpine base image to 3.21

Bump the Alpine base image from 3.20 to 3.21 in both the xx-build and
final stages of the Dockerfile, keeping the build toolchain and runtime
image on a current, supported Alpine release.
---
 Dockerfile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index df5df52ab..fe2229965 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM --platform=$BUILDPLATFORM ghcr.io/crazy-max/osxcross:14.5-debian AS osxcros
 
 ########################################################################################################################
 ### Build xx (original image: tonistiigi/xx)
-FROM --platform=$BUILDPLATFORM public.ecr.aws/docker/library/alpine:3.20 AS xx-build
+FROM --platform=$BUILDPLATFORM public.ecr.aws/docker/library/alpine:3.21 AS xx-build
 
 # v1.9.0
 ENV XX_VERSION=a5592eab7a57895e8d385394ff12241bc65ecd50
@@ -154,7 +154,7 @@ COPY --from=build /out /
 
 ########################################################################################################################
 ### Build Final Image
-FROM public.ecr.aws/docker/library/alpine:3.20 AS final
+FROM public.ecr.aws/docker/library/alpine:3.21 AS final
 LABEL maintainer="deluan@navidrome.org"
 LABEL org.opencontainers.image.source="https://github.com/navidrome/navidrome"