diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ef5fa6c..1ea68c5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,10 @@ jobs:
   - run: pip install flake8
   - run: flake8 run.py core
  test:
-  runs-on: ubuntu-latest
+  runs-on: ${{ matrix.os }}
+  strategy:
+    matrix:
+      os: [ ubuntu-latest, windows-latest ]
   steps:
   - name: Checkout
     uses: actions/checkout@v2