diff --git a/.github/workflows/build-api.yml b/.github/workflows/build-api.yml
index 52b0e19..0512c44 100644
--- a/.github/workflows/build-api.yml
+++ b/.github/workflows/build-api.yml
@@ -25,8 +25,8 @@ jobs:
           - uses: pdm-project/setup-pdm@v4
             name: Setup PDM
             with:
-              python-version: 3.10
-              # cache: true
+              python-version: 3.9
+              cache: true
 
           - name: sync pdm.lock
             run: pdm sync