@@ -26,7 +26,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v2
       with:
-        python-version: '3.x'
+        python-version: '3.9'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
 
@@ -91,9 +91,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v2
         with:
-          python-version: 3.7
+          python-version: "3.9"
       - name: Install tox
         run: python -m pip install -U tox
       - name: Run tox
 
@@ -95,7 +95,7 @@ commands =
 
 [testenv:build]
 description = Build an sdist and bdist
-basepython = python3.7
+basepython = python3.9
 skip_install = true
 passenv = *
 deps = build[virtualenv] >= 0.3.0