diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a42b6f1..2bb4f59 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
       - name: Set up Python 3.9
         uses: actions/setup-python@v2
         with:
-          python-versions: [3.6, 3.9]
+          python-version: 3.9
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip