diff --git a/composer.json b/composer.json
index 1311d1d..1e0738c 100644
--- a/composer.json
+++ b/composer.json
@@ -4,15 +4,15 @@
     "type": "symfony-bundle",
     "license": "MIT",
     "require": {
-        "symfony/config": "^4.4 | ^5.0",
-        "symfony/dependency-injection": "^4.4 | ^5.0",
-        "symfony/http-kernel": "^4.4 | ^5.0",
-        "symfony/routing": "^4.4 | ^5.0",
-        "doctrine/persistence": "^1.3 | ^2.0",
-        "ramsey/uuid-doctrine": "^1.6"
+        "symfony/config": "^4.4 | ^5.0 | ^6.0 | ^7.0",
+        "symfony/dependency-injection": "^4.4 | ^5.0 | ^6.0 | ^7.0",
+        "symfony/http-kernel": "^4.4 | ^5.0 | ^6.0 | ^7.0",
+        "symfony/routing": "^4.4 | ^5.0 | ^6.0 | ^7.0",
+        "doctrine/persistence": "^1.3 | ^2.0 | ^3.0",
+        "ramsey/uuid-doctrine": "^1.6 | ^2.0"
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "^2.16",
+        "friendsofphp/php-cs-fixer": "^2.16 | ^3.51.0",
         "symfony/phpunit-bridge": "^5.1"
     },
     "autoload": {
diff --git a/src/Action/BatchAction.php b/src/Action/BatchAction.php
index 93aca17..d840a12 100644
--- a/src/Action/BatchAction.php
+++ b/src/Action/BatchAction.php
@@ -23,9 +23,7 @@ public function __construct(
         $this->requestHandler = $requestHandler;
     }
 
-    /**
-     * @Route("/analytics/batch", methods={"POST"})
-     */
+    #[Route('/analytics/batch', methods: ['POST'])]
     public function __invoke(Request $request): JsonResponse
     {
         $analyticsRequest = $this->analyticsRequestFactory->fromSymfonyRequest($request, true);
diff --git a/src/DependencyInjection/Configuration.php b/src/DependencyInjection/Configuration.php
index 1ab55fe..78da95c 100644
--- a/src/DependencyInjection/Configuration.php
+++ b/src/DependencyInjection/Configuration.php
@@ -9,7 +9,7 @@
 
 class Configuration implements ConfigurationInterface
 {
-    public function getConfigTreeBuilder()
+    public function getConfigTreeBuilder(): TreeBuilder
     {
         $treeBuilder = new TreeBuilder('m10c_unlocked_analytics');