diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index f66cd5b9..2ec6f921 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -26,7 +26,7 @@ jobs:
         python-version: "3.9"
     - name: Install dependencies
       run: |
-        python -m pip config set global.index-url http://mirrors.aliyun.com/pypi/simple/
+        python -m pip config set global.index-url https://mirrors.aliyun.com/pypi/simple/
         python -m pip install --upgrade pip
         python -m pip install flake8 pytest
         python -m pip install torch