diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 943db3b..6fa8c21 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -17,6 +17,8 @@ jobs:
             toxenv: py37
           - version: 3.8
             toxenv: py38
+          - version: 3.9
+            toxenv: py39
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python ${{ matrix.python.version }}