diff --git a/.github/workflows/ci-cd.yml b/.github/workflows/ci-cd.yml
index 4050517..c340e1f 100644
--- a/.github/workflows/ci-cd.yml
+++ b/.github/workflows/ci-cd.yml
@@ -32,9 +32,10 @@ jobs:
 
   test:
     needs: lint
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     strategy:
       matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
         python-version: ["3.10", "3.11", "3.12"]
     steps:
       - uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493
@@ -48,6 +49,7 @@ jobs:
 
       - name: Configure Poetry
         run: poetry config virtualenvs.in-project true
+        shell: bash
 
       - name: Cache dependencies
         uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830
@@ -59,9 +61,11 @@ jobs:
 
       - name: Install dependencies
         run: poetry install --no-interaction --no-root
+        shell: bash
 
       - name: Run tests
         run: poetry run pytest
+        shell: bash
 
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@5a1091511ad55cbe89839c7260b706298ca349f7