diff --git a/.github/workflows/test-on-pr.yml b/.github/workflows/test-on-pr.yml
index f8087ef..f754931 100644
--- a/.github/workflows/test-on-pr.yml
+++ b/.github/workflows/test-on-pr.yml
@@ -6,7 +6,12 @@ jobs:
   unit-test:
     name: Run unit tests and linting
 
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
 
     steps:
       - name: Checkout code
@@ -23,7 +28,7 @@ jobs:
           safe-chain setup-ci
 
       - name: Install dependencies
-        run: npm ci
+        run: npm ci --ignore-scripts
 
       - name: Run unit tests
         run: npm test
@@ -35,10 +40,12 @@ jobs:
         run: npm run typecheck --workspace=packages/safe-chain
 
       - name: Create package tarball
+        if: matrix.os == 'ubuntu-latest'
         run: npm pack --workspace=packages/safe-chain
 
       - name: Upload package tarball
         uses: actions/upload-artifact@v4
+        if: matrix.os == 'ubuntu-latest'
         with:
           name: safe-chain-package
           path: aikidosec-safe-chain-*.tgz