diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 501be17..158c600 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -11,6 +11,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
         python-version: ["3.9", "3.10", "3.11"]
 
     steps: