diff --git a/.github/workflows/code_analysis.yaml b/.github/workflows/code_analysis.yaml
index 21ef34185..c752254ed 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: 'Composer Dependency Analysis'
+                        run: vendor/bin/composer-dependency-analyser
+
                     -
                         name: 'Check Active Classes'
                         run: vendor/bin/class-leak check src --ansi
diff --git a/composer-dependency-analyser.php b/composer-dependency-analyser.php
index a24219e43..e5911ab5e 100644
--- a/composer-dependency-analyser.php
+++ b/composer-dependency-analyser.php
@@ -5,19 +5,27 @@
 use ShipMonk\ComposerDependencyAnalyser\Config\Configuration;
 use ShipMonk\ComposerDependencyAnalyser\Config\ErrorType;
 
-return (new Configuration())->addPathToScan(__DIR__ . '/src', false)
+return (new Configuration())
     ->addPathToExclude(__DIR__ . '/tests/Rules/Rector/NoInstanceOfStaticReflectionRule/Fixture')
     ->addPathToExclude(__DIR__ . '/tests/Rules/Enum/RequireUniqueEnumConstantRule/Fixture')
     ->addPathToExclude(__DIR__ . '/tests/Rules/ForbiddenExtendOfNonAbstractClassRule/Fixture')
     ->addPathToExclude(__DIR__ . '/tests/Rules/PHPUnit/NoTestMocksRule/Fixture')
 
+    // optional classes
+    ->ignoreUnknownClasses(['Symfony\Component\ExpressionLanguage\Expression'])
+
     // already in phpstan/phpstan
     ->ignoreErrorsOnPackage('nikic/php-parser', [ErrorType::DEV_DEPENDENCY_IN_PROD])
+    ->ignoreErrorsOnPackage('symfony/routing', [ErrorType::SHADOW_DEPENDENCY])
+    ->ignoreErrorsOnPackage('symfony/var-dumper', [ErrorType::SHADOW_DEPENDENCY])
+    ->ignoreErrorsOnPackage('symfony/service-contracts', [ErrorType::SHADOW_DEPENDENCY])
+    ->ignoreErrorsOnPackage('symfony/http-kernel', [ErrorType::SHADOW_DEPENDENCY])
+    ->ignoreErrorsOnPackage('symfony/event-dispatcher', [ErrorType::SHADOW_DEPENDENCY])
+    ->ignoreErrorsOnPackage('symfony/deprecation-contracts', [ErrorType::SHADOW_DEPENDENCY])
+    ->ignoreErrorsOnPackage('symfony/dependency-injection', [ErrorType::SHADOW_DEPENDENCY])
+    ->ignoreErrorsOnPackage('symfony/config', [ErrorType::SHADOW_DEPENDENCY])
 
     // rule that runs on Rector rule only
     ->ignoreErrorsOnPackage('rector/rector', [ErrorType::DEV_DEPENDENCY_IN_PROD])
 
-    ->ignoreErrorsOnExtension('ext-ctype', [ErrorType::SHADOW_DEPENDENCY])
     ->ignoreErrorsOnExtension('ext-simplexml', [ErrorType::SHADOW_DEPENDENCY]);
-
-// ->ignoreErrorsOnPath('/Fixture/', [\ShipMonk\ComposerDependencyAnalyser\Config\ErrorType::UNKNOWN_CLASS]);
diff --git a/composer.json b/composer.json
index 966c9302d..aafbcc2fe 100644
--- a/composer.json
+++ b/composer.json
@@ -37,6 +37,9 @@
         },
         "classmap": [
             "stubs"
+        ],
+        "files": [
+            "vendor/symfony/dependency-injection/Loader/Configurator/ContainerConfigurator.php"
         ]
     },
     "config": {
diff --git a/src/Rules/PHPUnit/NoMockObjectAndRealObjectPropertyRule.php b/src/Rules/PHPUnit/NoMockObjectAndRealObjectPropertyRule.php
index 45d34f50c..b76fb426a 100644
--- a/src/Rules/PHPUnit/NoMockObjectAndRealObjectPropertyRule.php
+++ b/src/Rules/PHPUnit/NoMockObjectAndRealObjectPropertyRule.php
@@ -13,7 +13,7 @@
 use PHPStan\Rules\Rule;
 use PHPStan\Rules\RuleError;
 use PHPStan\Rules\RuleErrorBuilder;
-use PHPUnit\Framework\MockObject\MockObject;
+use Symplify\PHPStanRules\Enum\ClassName;
 use Symplify\PHPStanRules\Enum\RuleIdentifier\PHPUnitRuleIdentifier;
 
 /**
@@ -46,7 +46,7 @@ public function processNode(Node $node, Scope $scope): array
                 continue;
             }
 
-            if ($type->toString() !== MockObject::class) {
+            if ($type->toString() !== ClassName::MOCK_OBJECT_CLASS) {
                 continue;
             }
 
diff --git a/stubs/Doctrine/ODM/MongoDB/Event/OnFlushEventArgs.php b/stubs/Doctrine/ODM/MongoDB/Event/OnFlushEventArgs.php
new file mode 100644
index 000000000..e07598988
--- /dev/null
+++ b/stubs/Doctrine/ODM/MongoDB/Event/OnFlushEventArgs.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Doctrine\ODM\MongoDB\Event;
+
+class OnFlushEventArgs
+{
+
+}
diff --git a/stubs/Doctrine/ORM/EntityManager.php b/stubs/Doctrine/ORM/EntityManager.php
new file mode 100644
index 000000000..f8cd20714
--- /dev/null
+++ b/stubs/Doctrine/ORM/EntityManager.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Doctrine\ORM;
+
+class EntityManager implements EntityManagerInterface
+{
+    public function getRepository(string $class): object
+    {
+    }
+}
diff --git a/stubs/Symfony/Component/Form/Event/PostSubmitEvent.php b/stubs/Symfony/Component/Form/Event/PostSubmitEvent.php
new file mode 100644
index 000000000..3691cad15
--- /dev/null
+++ b/stubs/Symfony/Component/Form/Event/PostSubmitEvent.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace Symfony\Component\Form\Event;
+
+class PostSubmitEvent
+{
+}
diff --git a/stubs/Symfony/Component/Security/Http/Firewall/AbstractListener.php b/stubs/Symfony/Component/Security/Http/Firewall/AbstractListener.php
new file mode 100644
index 000000000..2ac1efe4b
--- /dev/null
+++ b/stubs/Symfony/Component/Security/Http/Firewall/AbstractListener.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace Symfony\Component\Security\Http\Firewall;
+
+abstract class AbstractListener
+{
+}
diff --git a/stubs/Symfony/Component/Security/Http/Firewall/UsernamePasswordFormAuthenticationListener.php b/stubs/Symfony/Component/Security/Http/Firewall/UsernamePasswordFormAuthenticationListener.php
new file mode 100644
index 000000000..6bffc4458
--- /dev/null
+++ b/stubs/Symfony/Component/Security/Http/Firewall/UsernamePasswordFormAuthenticationListener.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Symfony\Component\Security\Http\Firewall;
+
+class UsernamePasswordFormAuthenticationListener
+{
+
+}
diff --git a/tests/Rules/Symfony/NoListenerWithoutContractRule/Fixture/SkipAnotherSecurityListener.php b/tests/Rules/Symfony/NoListenerWithoutContractRule/Fixture/SkipAnotherSecurityListener.php
index 515cf1be1..fc6c5ecfe 100644
--- a/tests/Rules/Symfony/NoListenerWithoutContractRule/Fixture/SkipAnotherSecurityListener.php
+++ b/tests/Rules/Symfony/NoListenerWithoutContractRule/Fixture/SkipAnotherSecurityListener.php
@@ -2,8 +2,8 @@
 
 namespace Symplify\PHPStanRules\Tests\Rules\Symfony\NoListenerWithoutContractRule\Fixture;
 
-final class SkipAnotherSecurityListener extends
-    \Symfony\Component\Security\Http\Firewall\UsernamePasswordFormAuthenticationListener
-{
+use Symfony\Component\Security\Http\Firewall\UsernamePasswordFormAuthenticationListener;
 
+final class SkipAnotherSecurityListener extends UsernamePasswordFormAuthenticationListener
+{
 }