diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 44b98e0..22386ee 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -36,7 +36,11 @@ jobs:
       - name: Install dependencies
         run: |
           python3 -m venv .venv-ci
-          .venv-ci/bin/python -m pip install -r requirements-dev.txt
+          .venv-ci/bin/python -m pip install \
+            --index-url https://mirrors.aliyun.com/pypi/simple \
+            --timeout 120 \
+            --retries 5 \
+            -r requirements-dev.txt
       - name: Check migrations
         working-directory: backend
         run: ../.venv-ci/bin/python manage.py makemigrations --check --dry-run
@@ -57,4 +61,7 @@ jobs:
           .venv-ci/bin/python backend/manage.py migrate --noinput
           .venv-ci/bin/python -m pytest -q
       - name: Build image
-        run: docker build -t hulumath:${{ gitea.sha }} .
+        run: |
+          docker build \
+            --build-arg PIP_INDEX_URL=https://mirrors.aliyun.com/pypi/simple \
+            -t hulumath:${{ gitea.sha }} .
diff --git a/.gitea/workflows/deploy.yml b/.gitea/workflows/deploy.yml
index 196e392..12e2b03 100644
--- a/.gitea/workflows/deploy.yml
+++ b/.gitea/workflows/deploy.yml
@@ -43,7 +43,11 @@ jobs:
       - name: 安装测试依赖
         run: |
           python3 -m venv .venv-ci
-          .venv-ci/bin/python -m pip install -r requirements-dev.txt
+          .venv-ci/bin/python -m pip install \
+            --index-url https://mirrors.aliyun.com/pypi/simple \
+            --timeout 120 \
+            --retries 5 \
+            -r requirements-dev.txt
 
       - name: 检查迁移文件
         working-directory: backend
diff --git a/Dockerfile b/Dockerfile
index 3ce073e..f2f24dd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,12 @@
 FROM python:3.11-slim AS runtime
 
+ARG PIP_INDEX_URL=https://pypi.org/simple
+
 ENV PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1 \
-    PIP_DISABLE_PIP_VERSION_CHECK=1
+    PIP_DISABLE_PIP_VERSION_CHECK=1 \
+    PIP_INDEX_URL=$PIP_INDEX_URL \
+    PIP_DEFAULT_TIMEOUT=120
 
 WORKDIR /app