diff --git a/.github/workflows/test_pr_and_main.yml b/.github/workflows/test_pr_and_main.yml
index 9c2885d4..0f705ea4 100644
--- a/.github/workflows/test_pr_and_main.yml
+++ b/.github/workflows/test_pr_and_main.yml
@@ -167,7 +167,7 @@ jobs:
     needs: [ruff]
     strategy:
       matrix:
-        python-version: [3.9, 3.11]
+        python-version: [3.9, '3.10']
     steps:
     - uses: actions/checkout@v1
     - name: setup conda