diff --git a/Dockerfile b/Dockerfile
index 3be3959..154ea2e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -49,8 +49,12 @@ COPY pyproject.toml uv.lock README.md ./
 COPY pixelle_video ./pixelle_video
 
 # Install Python dependencies using uv with configurable index URL
-# Auto-select Aliyun mirror when USE_CN_MIRROR=true and UV_INDEX_URL is default
+# Auto-select China mirror when USE_CN_MIRROR=true and UV_INDEX_URL is default
+# Set longer timeout and reduce concurrent downloads for stability
 RUN if [ "$USE_CN_MIRROR" = "true" ] && [ "$UV_INDEX_URL" = "https://pypi.org/simple" ]; then \
+        export UV_HTTP_TIMEOUT=300 && \
+        export UV_CONCURRENT_DOWNLOADS=2 && \
+        uv sync --frozen --no-dev --index-url https://pypi.tuna.tsinghua.edu.cn/simple/ || \
         uv sync --frozen --no-dev --index-url https://mirrors.aliyun.com/pypi/simple/; \
     else \
         uv sync --frozen --no-dev --index-url $UV_INDEX_URL; \
diff --git a/docker-compose.yml b/docker-compose.yml
index 46768ed..9adb201 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -3,14 +3,14 @@ version: '3.8'
 # Build Arguments Configuration
 # You can override these by setting environment variables before running docker-compose
 #
-# Example for China environment (auto uses Aliyun mirrors):
+# Example for China environment (auto uses Tsinghua/Aliyun mirrors):
 #   USE_CN_MIRROR=true docker-compose up -d
 #
 # Example for international environment (default):
 #   docker-compose up -d
 #
 # Advanced: Use custom PyPI mirror:
-#   USE_CN_MIRROR=true UV_INDEX_URL=https://pypi.tuna.tsinghua.edu.cn/simple/ docker-compose up -d
+#   UV_INDEX_URL=https://mirrors.cloud.tencent.com/pypi/simple/ docker-compose up -d
 
 services:
   # API Service - FastAPI backend