diff --git a/Dockerfile b/Dockerfile
index 10abea8..00b9d39 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -51,10 +51,9 @@ RUN --mount=type=cache,target=/go/pkg/mod \
     && go build -trimpath -ldflags="-w -s" -o /luminary-recover ./cmd/luminary-recover
 
 ARG IMAGE_PREFIX=
-ARG APK_MIRROR=mirrors.aliyun.com
 FROM ${IMAGE_PREFIX}alpine:3.20
 
-ARG APK_MIRROR
+ARG APK_MIRROR=mirrors.aliyun.com
 RUN sed -i "s/dl-cdn.alpinelinux.org/${APK_MIRROR}/g" /etc/apk/repositories \
     && apk add --no-cache ca-certificates tzdata tini
 
diff --git a/docker/Dockerfile.prebuilt b/docker/Dockerfile.prebuilt
index bf7a53a..b53f361 100644
--- a/docker/Dockerfile.prebuilt
+++ b/docker/Dockerfile.prebuilt
@@ -2,7 +2,7 @@
 ARG IMAGE_PREFIX=docker.1panel.live/library/
 ARG APK_MIRROR=mirrors.aliyun.com
 FROM ${IMAGE_PREFIX}alpine:3.20 AS runtime
-ARG APK_MIRROR
+ARG APK_MIRROR=mirrors.aliyun.com
 RUN sed -i "s/dl-cdn.alpinelinux.org/${APK_MIRROR}/g" /etc/apk/repositories \
     && apk add --no-cache ca-certificates tini