diff --git a/deploy/Dockerfile b/deploy/Dockerfile
index 7caa5ca63e..af7071ffaa 100644
--- a/deploy/Dockerfile
+++ b/deploy/Dockerfile
@@ -8,7 +8,7 @@
 
 ARG NODE_IMAGE=node:24-alpine
 ARG GOLANG_IMAGE=golang:1.26.1-alpine
-ARG ALPINE_IMAGE=alpine:3.20
+ARG ALPINE_IMAGE=alpine:3.21
 ARG GOPROXY=https://goproxy.cn,direct
 ARG GOSUMDB=sum.golang.google.cn