diff --git a/.github/workflows/tests-mongodb.yml b/.github/workflows/tests-mongodb.yml
new file mode 100644
index 0000000..88745c8
--- /dev/null
+++ b/.github/workflows/tests-mongodb.yml
@@ -0,0 +1,52 @@
+name: "Tests: MongoDB"
+
+on:
+  - pull_request
+
+jobs:
+  mongodb:
+    name: PHP ${{ matrix.php }}
+    runs-on: ubuntu-20.04
+    strategy:
+      fail-fast: false
+      matrix:
+        php:
+          - "7.1"
+          - "7.2"
+          - "7.3"
+          - "7.4"
+    env:
+      PHPUNIT_VERSION: "7.5"
+      PHP_VERSION: "${{ matrix.php }}"
+
+    services:
+      mongodb:
+        image: percona/percona-server-mongodb:4.0
+        ports:
+          - 27017:27017
+
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v2
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          extensions: xdebug, xhprof, mongodb, tideways_xhprof
+
+      - name: Validate composer.json and composer.lock
+        run: composer validate
+
+      - name: Install dependencies
+        run: |
+          composer install --prefer-dist --no-progress
+          composer require --dev phpunit/phpunit:^$PHPUNIT_VERSION
+
+      - name: Install extensions
+        run: ./install-extensions.sh
+
+      - name: Run PHPUnit tests
+        run: composer test
+
+# vim:ft=yaml:et:ts=2:sw=2