diff --git a/backend/Dockerfile b/backend/Dockerfile
index ce93463..5df9a86 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -13,6 +13,8 @@ COPY backend/.env.example .
 # Create venv and install deps
 RUN uv venv /opt/venv && \
     uv pip install --python /opt/venv/bin/python \
+        --index-url https://mirrors.aliyun.com/pypi/simple/ \
+        --extra-index-url https://pypi.org/simple/ \
         "fastapi>=0.104.0" \
         "uvicorn[standard]>=0.24.0" \
         "python-multipart>=0.0.6" \