diff --git a/Dockerfile b/Dockerfile
index 6cc7c43..d9e6f13 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -27,10 +27,10 @@ ARG REGISTRY_URL="docker.colovu.com/"
 ARG APT_SOURCE=aliyun
 
 # 编译镜像时指定用于加速的本地软件包存储服务器地址
-ARG LOCAL_URL=""
+ARG LOCAL_URL="http://local.colovu.com/dist"
 
 # 0. 预处理 ======================================================================
-FROM --platform=${TARGETPLATFORM:-linux/amd64} ${REGISTRY_URL}colovu/dbuilder:11 as builder
+FROM --platform=${TARGETPLATFORM:-linux/amd64} ${REGISTRY_URL}colovu/dbuilder:12 as builder
 
 # 声明需要使用的全局可变参数
 ARG APP_NAME
@@ -97,7 +97,7 @@ RUN set -eux; \
 		sort -u >/usr/local/${APP_NAME}/runDeps;
 
 # 1. 生成镜像 =====================================================================
-FROM --platform=${TARGETPLATFORM:-linux/amd64} ${REGISTRY_URL}colovu/debian:11
+FROM --platform=${TARGETPLATFORM:-linux/amd64} ${REGISTRY_URL}colovu/debian:12
 
 # 声明需要使用的全局可变参数
 ARG APP_NAME