diff --git a/.github/workflows/workflow.yml b/.github/workflows/workflow.yml
index 0bbf72c..0951524 100644
--- a/.github/workflows/workflow.yml
+++ b/.github/workflows/workflow.yml
@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.10]
+        python-version: [3.9]
     steps:
     - uses: actions/checkout@v2
       with:
@@ -14,7 +14,7 @@ jobs:
     - name: Setup Python
       uses: actions/setup-python@master
       with:
-        python-version: 3.10
+        python-version: 3.9
     - name: Generate Report
       run: |
         pip install coverage