diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 1fb4f15..55a3b01 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -23,7 +23,7 @@ jobs:
       # You can use PyPy versions in python-version.
       # For example, pypy2 and pypy3
       matrix:
-        python-version: [ 3.9 ]
+        python-version:  [ 3.6, 3.7, 3.8, 3.9 ]
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
       - uses: actions/checkout@v2