diff --git a/.github/workflows/python-tests.yml b/.github/workflows/python-tests.yml
index 0661fc1..2c467c5 100644
--- a/.github/workflows/python-tests.yml
+++ b/.github/workflows/python-tests.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8, pypy3]
+        python-version: [3.6, 3.7, 3.8, 3.9, pypy3]
 
     steps:
     - uses: actions/checkout@v2