diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 36cdc2044..0b602c3bd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v2
       with:
-        python-version: 3.10.7
+        python-version: 3.9
     - name: test if api works before setup install since setup install miss data
       run: pip install domainlab && cd examples/api/ && python jigen_dann_transformer.py
     - name: Install dependencies