diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 5a478ad60..73b5ea44b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -37,6 +37,7 @@ jobs:
   mypy:
     strategy:
       matrix:
+        os: [ubuntu-latest, windows-latest]
         python-version: ["3.8", "3.9", "3.10"]
     runs-on: ubuntu-latest
     steps: