diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index a5bdcc5..38c0b37 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -13,10 +13,15 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['8.2', '8.3', '8.4', '8.5']
+        php-versions: ['7.4', '8.0', '8.1', '8.2', '8.3', '8.4', '8.5']
     steps:
     - uses: actions/checkout@v2
 
+    - name: Setup PHP
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: ${{ matrix.php-versions }}
+
     - name: Validate composer.json and composer.lock
       run: composer validate --strict
 
diff --git a/composer.json b/composer.json
index 823bde7..04177e1 100644
--- a/composer.json
+++ b/composer.json
@@ -20,9 +20,9 @@
         }
     },
     "require": {
-        "php": ">=8.2",
+        "php": "^7.4|>=8.0",
         "webmozart/assert": "^1.0",
-        "symfony/event-dispatcher": "^7.0||^8.0"
+        "symfony/event-dispatcher": "^5.0|^6.0|^7.0|^8.0"
     },
     "require-dev": {
         "ext-pdo": "*",
@@ -30,10 +30,10 @@
         "infection/infection": "~0.13",
         "phpstan/phpstan": "^2.0",
         "phpstan/phpstan-phpunit": "^2.0",
-        "phpunit/phpunit": "^12.0",
+        "phpunit/phpunit": ">=9.0",
         "squizlabs/php_codesniffer": "^3.2",
-        "symfony/cache": ">=7.0",
-        "symfony/var-exporter": "^7.0"
+        "symfony/cache": "^5.0|^6.0|^7.0|^8.0",
+        "symfony/var-exporter": "^5.0|^6.0|^7.0|^8.0"
     },
     "scripts": {
         "test": "bin/phpunit; bin/phpcs; bin/phpstan; bin/infection"