diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index bdfa943..da654c1 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -40,7 +40,12 @@ jobs:
 
       - name: 安装后端依赖
         working-directory: back
-        run: python3.11 -m pip install --break-system-packages -i https://pypi.tuna.tsinghua.edu.cn/simple -r requirements.txt
+        run: |
+          python3.11 -m venv venv
+          source venv/bin/activate
+          pip install --upgrade pip
+          pip install -i https://pypi.tuna.tsinghua.edu.cn/simple -r requirements.txt
 
       - name: 构建 Docker 镜像
-        run: docker-compose build
\ No newline at end of file
+        run: |
+          docker-compose build
\ No newline at end of file