diff --git a/.drone.yml b/.drone.yml
index 7522cab..2592532 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -7,9 +7,9 @@ steps:
     image: python:3.12
     commands:
       - cd backend
-      - pip install -r requirements.txt
+      - pip install -r requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple
       - python main.py
 
 trigger:
   branch:
-    - master
+    - master
\ No newline at end of file