diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 51c19f47..1e3a3bd5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,6 +41,33 @@ jobs:
       - name: ⬆️ Upload coverage report
         uses: codecov/codecov-action@v1
 
+  cannary:
+    runs-on: ubuntu-latest
+    steps:
+      - name: ⬇️ Checkout repo
+        uses: actions/checkout@v2
+      - name: 📥 Download deps
+        uses: bahmutov/npm-install@v1
+        with:
+          useLockFile: false
+          install-command: yarn --silent
+        env:
+          HUSKY_SKIP_INSTALL: true
+
+      - name: ✍ Lint
+        run: npm run lint
+      - name: 🧪 Test
+        run: npm run test:happy-dom -- --coverage
+      - name: 🚧 Build test environments
+        run: npm run setup:env
+      - name: 🔬 Test with toolbox
+        run: npm run test:toolbox
+      - name: 🏗 Build
+        run: npm run build
+
+      - name: ⬆️ Upload coverage report
+        uses: codecov/codecov-action@v1
+
   release:
     needs: validate
     runs-on: ubuntu-latest
diff --git a/package.json b/package.json
index 8cc83df7..bb42ec53 100644
--- a/package.json
+++ b/package.json
@@ -32,12 +32,14 @@
     "setup:env": "node --experimental-import-meta-resolve scripts/setup.js",
     "test": "kcd-scripts test",
     "test:jest": "kcd-scripts test",
+    "test:happy-dom": "kcd-scripts test --env=@happy-dom/jest-environment",
     "test:toolbox": "NODE_OPTIONS='--experimental-vm-modules --experimental-modules --experimental-import-meta-resolve' node scripts/test.js",
     "test:debug": "kcd-scripts --inspect-brk test --runInBand",
     "test:update": "npm test -- --updateSnapshot --coverage",
     "validate": "kcd-scripts typecheck"
   },
   "devDependencies": {
+    "@happy-dom/jest-environment": "^12.6.0",
     "@ph.fritsche/scripts-config": "^2.4.0",
     "@ph.fritsche/toolbox": "^1.0.0-alpha.1",
     "@testing-library/dom": "^8.19.0",