diff --git a/backend/Dockerfile b/backend/Dockerfile
index 448bd2d..2caac72 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -8,12 +8,16 @@ FROM python:3.11-slim AS base
 
 WORKDIR /app
 
+# 使用阿里云镜像加速 apt 和 pip
+RUN sed -i 's|deb.debian.org|mirrors.aliyun.com|g' /etc/apt/sources.list.d/debian.sources 2>/dev/null || \
+    sed -i 's|deb.debian.org|mirrors.aliyun.com|g' /etc/apt/sources.list 2>/dev/null || true
+
 RUN apt-get update && apt-get install -y --no-install-recommends \
     gcc default-libmysqlclient-dev curl \
     && rm -rf /var/lib/apt/lists/*
 
 COPY requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
+RUN pip install --no-cache-dir -i https://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com -r requirements.txt
 
 # 复制共享模块
 COPY shared/ ./shared/
diff --git a/frontend/Dockerfile b/frontend/Dockerfile
index 1648394..900535e 100644
--- a/frontend/Dockerfile
+++ b/frontend/Dockerfile
@@ -6,11 +6,15 @@ FROM python:3.11-slim
 
 WORKDIR /app
 
+# 使用阿里云镜像加速 apt 和 pip
+RUN sed -i 's|deb.debian.org|mirrors.aliyun.com|g' /etc/apt/sources.list.d/debian.sources 2>/dev/null || \
+    sed -i 's|deb.debian.org|mirrors.aliyun.com|g' /etc/apt/sources.list 2>/dev/null || true
+
 RUN apt-get update && apt-get install -y --no-install-recommends curl \
     && rm -rf /var/lib/apt/lists/*
 
 COPY requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
+RUN pip install --no-cache-dir -i https://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com -r requirements.txt
 
 COPY . .