diff --git a/rector.php b/rector.php
index 83f6fd650..437e3d36f 100644
--- a/rector.php
+++ b/rector.php
@@ -17,6 +17,7 @@
 use Rector\Php70\Rector\StmtsAwareInterface\IfIssetToCoalescingRector;
 use Rector\Php71\Rector\FuncCall\RemoveExtraParametersRector;
 use Rector\Php80\Rector\Class_\ClassPropertyAssignToConstructorPromotionRector;
+use Rector\Php81\Rector\ClassMethod\NewInInitializerRector;
 use Rector\Php81\Rector\Property\ReadOnlyPropertyRector;
 
 return RectorConfig::configure()
@@ -80,6 +81,7 @@
         RemoveUnusedPublicMethodParameterRector::class,
         RemoveEmptyClassMethodRector::class,
         RemoveUnusedPromotedPropertyRector::class,
+        NewInInitializerRector::class,
 
         // start with short open tag
         __DIR__ . '/src/Views/tests/fixtures/other/var.php',
diff --git a/src/Queue/src/Interceptor/Consume/Handler.php b/src/Queue/src/Interceptor/Consume/Handler.php
index 3d86114f2..b09a94a3c 100644
--- a/src/Queue/src/Interceptor/Consume/Handler.php
+++ b/src/Queue/src/Interceptor/Consume/Handler.php
@@ -19,12 +19,14 @@
  */
 final class Handler
 {
+    private readonly TracerFactoryInterface $tracerFactory;
     private readonly bool $isLegacy;
 
     public function __construct(
         private readonly HandlerInterface|CoreInterface $core,
-        private readonly TracerFactoryInterface $tracerFactory = new NullTracerFactory(new Container()),
+        ?TracerFactoryInterface $tracerFactory = null,
     ) {
+        $this->tracerFactory = $tracerFactory ?? new NullTracerFactory(new Container());
         $this->isLegacy = !$core instanceof HandlerInterface;
     }
 
diff --git a/src/Router/src/Router.php b/src/Router/src/Router.php
index 5199601f5..7905df506 100644
--- a/src/Router/src/Router.php
+++ b/src/Router/src/Router.php
@@ -44,14 +44,16 @@ final class Router implements RouterInterface
     private array $routes = [];
 
     private ?RouteInterface $default = null;
+    private readonly TracerInterface $tracer;
 
     public function __construct(
         string $basePath,
         private readonly UriHandler $uriHandler,
         private readonly ContainerInterface $container,
         private readonly ?EventDispatcherInterface $eventDispatcher = null,
-        private readonly TracerInterface $tracer = new NullTracer(),
+        ?TracerInterface $tracer = null,
     ) {
+        $this->tracer = $tracer ?? new NullTracer();
         $this->basePath = '/' . \ltrim($basePath, '/');
     }
 
diff --git a/src/Router/src/UriHandler.php b/src/Router/src/UriHandler.php
index 3ad70e9fc..9630bd498 100644
--- a/src/Router/src/UriHandler.php
+++ b/src/Router/src/UriHandler.php
@@ -34,6 +34,8 @@ final class UriHandler
     ];
 
     private ?string $pattern = null;
+
+    private readonly RoutePatternRegistryInterface $patternRegistry;
     private array $constrains = [];
     private array $defaults = [];
     private bool $matchHost = false;
@@ -54,8 +56,10 @@ final class UriHandler
     public function __construct(
         private readonly UriFactoryInterface $uriFactory,
         SlugifyInterface $slugify = null,
-        private readonly RoutePatternRegistryInterface $patternRegistry = new DefaultPatternRegistry(),
+        ?RoutePatternRegistryInterface $patternRegistry = null,
     ) {
+        $this->patternRegistry = $patternRegistry ?? new DefaultPatternRegistry();
+
         $slugify ??= new Slugify();
         $this->pathSegmentEncoder = static fn (string $segment): string => $slugify->slugify($segment);
     }
diff --git a/src/Views/src/ViewManager.php b/src/Views/src/ViewManager.php
index cf038ad6e..3ec28752b 100644
--- a/src/Views/src/ViewManager.php
+++ b/src/Views/src/ViewManager.php
@@ -12,6 +12,7 @@ final class ViewManager implements ViewsInterface
 {
     private readonly LoaderInterface $loader;
     private ?ViewCache $cache = null;
+    private ContextInterface $context;
 
     /** @var EngineInterface[] */
     private array $engines = [];
@@ -20,8 +21,9 @@ public function __construct(
         private readonly ViewsConfig $config,
         private readonly GlobalVariablesInterface $globalVariables,
         FactoryInterface $factory,
-        private ContextInterface $context = new ViewContext()
+        ?ContextInterface $context = null
     ) {
+        $this->context = $context ?? new ViewContext();
         $this->loader = $factory->make(LoaderInterface::class, [
             'namespaces' => $config->getNamespaces(),
         ]);