diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index 1a2ae78..decd5ff 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -18,7 +18,7 @@ jobs:
         strategy:
             matrix:
                 os: [ubuntu-latest, windows-latest, macos-latest]
-                python-version: [2.7, 3.5, 3.6, 3.7, 3.8]
+                python-version: [2.7, 3.5, 3.6, 3.7, 3.8, 3.9]
         steps:
             -   uses: actions/checkout@v2
             -   name: Set up Python ${{ matrix.python-version }}