diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index 1153303..72cb4f9 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       max-parallel: 5
       matrix:
-        python-version: "3.10"
+        python-version: [3.9]
 
     steps:
     - uses: actions/checkout@v2