diff --git a/.github/workflows/code_analysis.yaml b/.github/workflows/code_analysis.yaml
index 7c56860..45c9000 100644
--- a/.github/workflows/code_analysis.yaml
+++ b/.github/workflows/code_analysis.yaml
@@ -32,6 +32,10 @@ jobs:
                         name: 'Tests'
                         run: vendor/bin/phpunit
 
+                    -
+                        name: 'Dependency Analysis'
+                        run: vendor/bin/composer-dependency-analyser
+
                     -
                         name: 'Check Active Classes'
                         run: vendor/bin/class-leak check src --ansi --skip-type="\Symplify\PhpConfigPrinter\Contract\Converter\ServiceOptionsKeyYamlToPhpFactoryInterface" --skip-type="\Symplify\PhpConfigPrinter\Contract\RoutingCaseConverterInterface" --skip-type="\Symplify\PhpConfigPrinter\Contract\CaseConverterInterface"
diff --git a/.gitignore b/.gitignore
index 382f83c..412b580 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,6 @@
 composer.lock
 
 .phpunit.cache
+
+# symfony kernel cache dir
+/var
diff --git a/README.md b/README.md
index 822d665..a901825 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 [![Downloads total](https://img.shields.io/packagist/dt/symplify/php-config-printer.svg?style=flat-square)](https://packagist.org/packages/symplify/php-config-printer/stats)
 
-Print Symfony services array with configuration to to plain PHP file format thanks to this simple php-parser wrapper
+Print Symfony services array with configuration to to plain PHP file format using [nikic/php-parser](https://github.com/nikic/PHP-Parser)
 
 ## Install
 
diff --git a/composer-dependency-analyser.php b/composer-dependency-analyser.php
new file mode 100644
index 0000000..92eaf90
--- /dev/null
+++ b/composer-dependency-analyser.php
@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+use ShipMonk\ComposerDependencyAnalyser\Config\Configuration;
+use ShipMonk\ComposerDependencyAnalyser\Config\ErrorType;
+
+// include ref() function
+// require __DIR__ . '/vendor/symfony/dependency-injection/Loader/Configurator/ContainerConfigurator.php';
+
+$configuration = new Configuration();
+
+// can be used conditionally, based on project context
+$configuration->ignoreErrorsOnPackage('myclabs/php-enum', [ErrorType::DEV_DEPENDENCY_IN_PROD]);
+
+return $configuration;
diff --git a/composer.json b/composer.json
index 2662b55..c9364a5 100644
--- a/composer.json
+++ b/composer.json
@@ -4,18 +4,24 @@
     "license": "MIT",
     "require": {
         "php": ">=8.2",
-        "nette/utils": "^3.2",
-        "nikic/php-parser": "^5.3",
-        "symfony/yaml": "^6.4"
+        "ext-ctype": "*",
+        "nette/utils": "^4.0",
+        "nikic/php-parser": "^5.5",
+        "symfony/dependency-injection": "^6.4|^7.3",
+        "symfony/service-contracts": "^3.6",
+        "symfony/yaml": "^6.4",
+        "webmozart/assert": "^1.11"
     },
     "require-dev": {
+        "symfony/config": "^6.4|^7.3",
+        "symfony/http-kernel": "^6.4|^7.3",
         "myclabs/php-enum": "^1.8",
+        "phpecs/phpecs": "^2.1",
         "phpstan/extension-installer": "^1.4",
         "phpstan/phpstan": "^2.1",
-        "phpunit/phpunit": "^10.5",
-        "rector/rector": "^2.0",
-        "phpecs/phpecs": "^2.0",
-        "symplify/easy-testing": "^11.1",
+        "phpunit/phpunit": "^11.5",
+        "rector/rector": "^2.1",
+        "shipmonk/composer-dependency-analyser": "^1.8",
         "symplify/phpstan-extensions": "^12.0",
         "tomasvotruba/class-leak": "^2.0"
     },
diff --git a/config/config.php b/config/config.php
index 82560f2..3015710 100644
--- a/config/config.php
+++ b/config/config.php
@@ -37,7 +37,6 @@
         __DIR__ . '/../src/RoutingCaseConverter'
     )->tag(RoutingCaseConverterInterface::class);
 
-
     $services->load(
         'Symplify\\PhpConfigPrinter\\ServiceOptionConverter\\',
         __DIR__ . '/../src/ServiceOptionConverter'
diff --git a/ecs.php b/ecs.php
index a727014..00d9e79 100644
--- a/ecs.php
+++ b/ecs.php
@@ -6,6 +6,7 @@
 
 return ECSConfig::configure()
     ->withPaths([
+        __DIR__ . '/config',
         __DIR__ . '/src',
         __DIR__ . '/tests',
     ])
diff --git a/phpstan.neon b/phpstan.neon
index 9cb986b..c92138e 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -22,3 +22,8 @@ parameters:
 
         # unclear what to do
         - '#Parameter \#1 \$items of class PhpParser\\Node\\Expr\\Array_ constructor expects array<PhpParser\\Node\\ArrayItem>, array<PhpParser\\Node\\Arg> given#'
+
+        # runs also on older PHP versions, like 7.4+
+        -
+            message: '#Right side of && is always true#'
+            path:  src/NodeFactory/ArgsNodeFactory.php
diff --git a/rector.php b/rector.php
index ccd4af5..63524d9 100644
--- a/rector.php
+++ b/rector.php
@@ -24,5 +24,4 @@
 
         // old value is needed
         \Rector\Php81\Rector\MethodCall\MyCLabsMethodCallToEnumConstRector::class,
-
     ]);
diff --git a/src/Naming/ReferenceFunctionNameResolver.php b/src/Naming/ReferenceFunctionNameResolver.php
index 38bb2d5..dd5a17b 100644
--- a/src/Naming/ReferenceFunctionNameResolver.php
+++ b/src/Naming/ReferenceFunctionNameResolver.php
@@ -17,6 +17,13 @@ final class ReferenceFunctionNameResolver
      */
     public static function resolve(): string
     {
+        $symfonyFunctionsFile = getcwd() . '/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/Configurator/ContainerConfigurator.php';
+
+        if (file_exists($symfonyFunctionsFile)) {
+            // this file must be included manually, as composer will only load it once function called
+            require_once $symfonyFunctionsFile;
+        }
+
         if (function_exists(FunctionName::REF)) {
             return FunctionName::REF;
         }
diff --git a/tests/AbstractTestCase.php b/tests/AbstractTestCase.php
new file mode 100644
index 0000000..a7d3d47
--- /dev/null
+++ b/tests/AbstractTestCase.php
@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Symplify\PhpConfigPrinter\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Symplify\PhpConfigPrinter\Tests\HttpKernel\TestKernel;
+
+abstract class AbstractTestCase extends TestCase
+{
+    private \Symfony\Component\DependencyInjection\ContainerInterface $container;
+
+    protected function setUp(): void
+    {
+        $testKernel = new TestKernel('test', true);
+        $testKernel->boot();
+
+        $this->container = $testKernel->getContainer();
+    }
+
+    /**
+     * @template TType as object
+     *
+     * @param class-string<TType> $type
+     * @return TType
+     */
+    public function getService(string $type): object
+    {
+        if (! $this->container->has($type)) {
+            throw new \RuntimeException(sprintf('Service "%s" not found in container.', $type));
+        }
+
+        return $this->container->get($type);
+    }
+}
diff --git a/tests/HttpKernel/PhpConfigPrinterKernel.php b/tests/HttpKernel/PhpConfigPrinterKernel.php
deleted file mode 100644
index 5611721..0000000
--- a/tests/HttpKernel/PhpConfigPrinterKernel.php
+++ /dev/null
@@ -1,21 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Symplify\PhpConfigPrinter\Tests\HttpKernel;
-
-use Psr\Container\ContainerInterface;
-use Symplify\PhpConfigPrinter\ValueObject\PhpConfigPrinterConfig;
-use Symplify\SymplifyKernel\HttpKernel\AbstractSymplifyKernel;
-
-final class PhpConfigPrinterKernel extends AbstractSymplifyKernel
-{
-    /**
-     * @param string[] $configFiles
-     */
-    public function createFromConfigs(array $configFiles): ContainerInterface
-    {
-        $configFiles[] = PhpConfigPrinterConfig::FILE_PATH;
-        return $this->create($configFiles);
-    }
-}
diff --git a/tests/HttpKernel/TestKernel.php b/tests/HttpKernel/TestKernel.php
new file mode 100644
index 0000000..2597ef9
--- /dev/null
+++ b/tests/HttpKernel/TestKernel.php
@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Symplify\PhpConfigPrinter\Tests\HttpKernel;
+
+use Symfony\Component\Config\Loader\LoaderInterface;
+use Symfony\Component\HttpKernel\Kernel;
+
+/**
+ * This config is needed for tests to run
+ */
+final class TestKernel extends Kernel
+{
+    public function registerBundles(): iterable
+    {
+        return [];
+    }
+
+    public function registerContainerConfiguration(LoaderInterface $loader): void
+    {
+        $loader->load(__DIR__ . '/../../config/config.php');
+    }
+}
diff --git a/tests/Printer/SmartPhpConfigPrinter/SmartPhpConfigPrinterTest.php b/tests/Printer/SmartPhpConfigPrinter/SmartPhpConfigPrinterTest.php
index d7343b1..5dee9b2 100644
--- a/tests/Printer/SmartPhpConfigPrinter/SmartPhpConfigPrinterTest.php
+++ b/tests/Printer/SmartPhpConfigPrinter/SmartPhpConfigPrinterTest.php
@@ -6,20 +6,20 @@
 
 use Iterator;
 use PHPUnit\Framework\Attributes\DataProvider;
-use Symplify\PackageBuilder\Testing\AbstractKernelTestCase;
 use Symplify\PhpConfigPrinter\Printer\SmartPhpConfigPrinter;
-use Symplify\PhpConfigPrinter\Tests\HttpKernel\PhpConfigPrinterKernel;
+use Symplify\PhpConfigPrinter\Tests\AbstractTestCase;
 use Symplify\PhpConfigPrinter\Tests\Printer\SmartPhpConfigPrinter\Source\ClassWithConstants;
 use Symplify\PhpConfigPrinter\Tests\Printer\SmartPhpConfigPrinter\Source\FirstClass;
 use Symplify\PhpConfigPrinter\Tests\Printer\SmartPhpConfigPrinter\Source\SecondClass;
 
-final class SmartPhpConfigPrinterTest extends AbstractKernelTestCase
+final class SmartPhpConfigPrinterTest extends AbstractTestCase
 {
     private SmartPhpConfigPrinter $smartPhpConfigPrinter;
 
     protected function setUp(): void
     {
-        $this->bootKernel(PhpConfigPrinterKernel::class);
+        parent::setUp();
+
         $this->smartPhpConfigPrinter = $this->getService(SmartPhpConfigPrinter::class);
     }