diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 37a87a4..4dd4907 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -16,7 +16,7 @@ jobs:
           git clone https://${{ github.token }}@${{ env.GIT_SERVER }}/${{ github.repository }} $(pwd)
           git lfs install
           git lfs pull
-          pip install pdm==2.20.1
+          pip install --break-system-package pdm==2.20.1
           pdm install
           pdm start
       - name: deploy