diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 6061286a..abe42575 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -21,6 +21,7 @@ jobs:
         python-version:
           - 3.7
           - 3.8
+          - 3.9
 
     steps:
       - uses: actions/checkout@master