diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..eee61ef
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,41 @@
+name: PHP Composer
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    name: Build for ${{ matrix.php-version }}
+    runs-on: ubuntu-latest
+    strategy:
+      matrix: 
+        php-version: [7.1, 7.2, 7.3, 7.4, 8.0]
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Validate composer.json and composer.lock
+      run: composer validate --strict
+
+    - name: "Install PHP"
+      uses: "shivammathur/setup-php@v2"
+      with:
+        php-version: "${{ matrix.php-version }}"
+
+    - name: Cache Composer packages
+      id: composer-cache
+      uses: actions/cache@v2
+      with:
+        path: vendor
+        key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-php-
+
+    - name: Install dependencies
+      run: composer install --prefer-dist --no-progress
+
+    - name: Update phpunit
+      if: startsWith(matrix.php, '7.1')
+      run: |
+        composer update --prefer-lowest
+
+    - name: Run test suite
+      run: vendor/bin/phpunit
diff --git a/composer.json b/composer.json
index adc6166..0fb3451 100644
--- a/composer.json
+++ b/composer.json
@@ -3,12 +3,12 @@
     "description": "Configuration wrapper for redis-sentinel or plain redis",
     "type": "library",
     "require": {
-        "php": "^7.1",
+        "php": ">=7.1 | >=8.0",
         "jamescauwelier/psredis": "^1.1"
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^2.14",
-        "phpunit/phpunit": "^7.5"
+        "phpunit/phpunit": "^7.0 | ^9.0"
     },
     "license": "MIT",
     "authors": [