diff --git a/Dockerfile b/Dockerfile
index bbf8ee9..c78e9a0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # bump: alpine /ALPINE_VERSION=alpine:([\d.]+)/ docker:alpine|^3
 # bump: alpine link "Release notes" https://alpinelinux.org/posts/Alpine-$LATEST-released.html
-ARG ALPINE_VERSION=alpine:3.20.3
+ARG ALPINE_VERSION=alpine:3.21.2
 FROM $ALPINE_VERSION AS builder
 
 # Alpine Package Keeper options