diff --git a/.github/workflows/tox-pytest.yml b/.github/workflows/tox-pytest.yml
index 54eb121..bea76d6 100644
--- a/.github/workflows/tox-pytest.yml
+++ b/.github/workflows/tox-pytest.yml
@@ -26,7 +26,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ['3.8']
+        python-version: ['3.9']
         # python-version: ['3.8', '3.9', '3.10']
         poetry-version: ['1.8.3']
         include: