diff --git a/Dockerfile b/Dockerfile
index a086fc9..36960ee 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,9 +6,11 @@ FROM --platform=linux/amd64 node:20-alpine AS builder
 # 使用阿里云镜像源加速
 RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
 
-# 设置工作目录
 WORKDIR /build
 
+# Corepack 下载 pnpm 前使用镜像源，避免开发机或网络环境无法访问 npmjs.org
+ENV COREPACK_NPM_REGISTRY=https://registry.npmmirror.com
+
 # 安装 pnpm
 RUN corepack enable && corepack prepare pnpm@10.15.0 --activate