diff --git a/.github/workflows/continuous-integration.yaml b/.github/workflows/continuous-integration.yaml
index 976f63c..d476237 100644
--- a/.github/workflows/continuous-integration.yaml
+++ b/.github/workflows/continuous-integration.yaml
@@ -22,7 +22,6 @@ jobs:
           - '8.5'
         symfony-version:
           - '6.4.*'
-          - '7.3.*'
           - '7.4.*'
         include:
           - php-version: '8.4'
diff --git a/composer.json b/composer.json
index d712861..84e8ef7 100644
--- a/composer.json
+++ b/composer.json
@@ -19,13 +19,13 @@
         "symfony/translation": "^6.4 || ^7.0 || ^8.0"
     },
     "require-dev": {
-        "phpstan/phpstan": "^2.1.22",
-        "phpstan/phpstan-deprecation-rules": "^2.0.3",
-        "phpunit/phpunit": "^11.1.3",
+        "phpstan/phpstan": "^2.1.55",
+        "phpstan/phpstan-deprecation-rules": "^2.0.4",
+        "phpunit/phpunit": "^11.5.55",
         "symfony/asset-mapper": "^6.4 || ^7.0 || ^8.0",
         "symfony/framework-bundle": "^6.4 || ^7.0 || ^8.0",
         "symfony/twig-bundle": "^6.4 || ^7.0 || ^8.0",
-        "symplify/easy-coding-standard": "^12.5.24"
+        "symplify/easy-coding-standard": "^13.1.3"
     },
     "scripts": {
         "ci": [
diff --git a/tests/LeaptSlugTypeTestingKernel.php b/tests/LeaptSlugTypeTestingKernel.php
index 0d0d4dc..002ac79 100644
--- a/tests/LeaptSlugTypeTestingKernel.php
+++ b/tests/LeaptSlugTypeTestingKernel.php
@@ -29,7 +29,7 @@ public function registerBundles(): iterable
 
     public function registerContainerConfiguration(LoaderInterface $loader): void
     {
-        $loader->load(function (ContainerBuilder $container) {
+        $loader->load(static function (ContainerBuilder $container) {
             $container->loadFromExtension('framework', [
                 'secret'         => 'S3CRET',
                 'test'           => true,