diff --git a/backend/Dockerfile b/backend/Dockerfile
index a9e581a..18d624d 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -2,14 +2,21 @@
 # 多阶段构建，优化镜像大小和安全性
 
 # Stage 1: 构建阶段
-FROM golang:1.23-alpine AS builder
+FROM registry.cn-hangzhou.aliyuncs.com/library/golang:1.23-alpine AS builder
 
 # 设置工作目录
 WORKDIR /app
 
+# 配置镜像源加速
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
+
 # 安装构建依赖
 RUN apk add --no-cache git ca-certificates tzdata
 
+# 配置 Go 模块代理
+ENV GOPROXY=https://goproxy.cn,direct
+ENV GOSUMDB=sum.golang.google.cn
+
 # 复制 go mod 文件并下载依赖
 COPY go.mod go.sum ./
 RUN go mod download