diff --git a/src/Command/InspectCommand.php b/src/Command/InspectCommand.php
index fdf6725..70c86dd 100644
--- a/src/Command/InspectCommand.php
+++ b/src/Command/InspectCommand.php
@@ -22,20 +22,15 @@ final class InspectCommand extends Command
     /** @var string|null $defaultName */
     public static $defaultName = 'servicemanager:inspect';
 
-    /** @var DependencyConfigInterface */
-    private $config;
+    private DependencyConfigInterface $config;
 
-    /** @var DependencyScannerInterface */
-    private $dependencyScanner;
+    private DependencyScannerInterface $dependencyScanner;
 
-    /** @var TraverserInterface */
-    private $traverser;
+    private TraverserInterface $traverser;
 
-    /** @var EventCollectorInterface */
-    private $eventCollector;
+    private EventCollectorInterface $eventCollector;
 
-    /** @var EventReporterInterface */
-    private $eventReporter;
+    private EventReporterInterface $eventReporter;
 
     public function __construct(
         DependencyConfigInterface $config,
diff --git a/src/Dependency/Dependency.php b/src/Dependency/Dependency.php
index 6ff4971..ba4dc5d 100644
--- a/src/Dependency/Dependency.php
+++ b/src/Dependency/Dependency.php
@@ -6,11 +6,9 @@
 
 final class Dependency
 {
-    /** @var string */
-    private $name;
+    private string $name;
 
-    /** @var bool */
-    private $isOptional;
+    private bool $isOptional;
 
     public function __construct(string $name, bool $isOptional = false)
     {
diff --git a/src/Event/AutowireFactoryEnteredEvent.php b/src/Event/AutowireFactoryEnteredEvent.php
index d370da7..e8d5882 100644
--- a/src/Event/AutowireFactoryEnteredEvent.php
+++ b/src/Event/AutowireFactoryEnteredEvent.php
@@ -6,8 +6,7 @@
 
 final class AutowireFactoryEnteredEvent implements EnterEventInterface
 {
-    /** @var string */
-    private $dependencyName;
+    private string $dependencyName;
 
     /** @psalm-var list<string> */
     private $instantiationStack;
diff --git a/src/Event/CircularDependencyDetectedEvent.php b/src/Event/CircularDependencyDetectedEvent.php
index bdc5197..ad89da3 100644
--- a/src/Event/CircularDependencyDetectedEvent.php
+++ b/src/Event/CircularDependencyDetectedEvent.php
@@ -9,8 +9,7 @@
 
 final class CircularDependencyDetectedEvent implements TerminalEventInterface
 {
-    /** @var string */
-    private $dependencyName;
+    private string $dependencyName;
 
     /** @psalm-var list<string> */
     private $instantiationStack;
diff --git a/src/Event/CustomFactoryEnteredEvent.php b/src/Event/CustomFactoryEnteredEvent.php
index 0e1359e..0bbac60 100644
--- a/src/Event/CustomFactoryEnteredEvent.php
+++ b/src/Event/CustomFactoryEnteredEvent.php
@@ -6,8 +6,7 @@
 
 final class CustomFactoryEnteredEvent implements EnterEventInterface
 {
-    /** @var string */
-    private $dependencyName;
+    private string $dependencyName;
 
     /** @psalm-var list<string> */
     private $instantiationStack;
diff --git a/src/Event/InvokableEnteredEvent.php b/src/Event/InvokableEnteredEvent.php
index 3c20236..7206792 100644
--- a/src/Event/InvokableEnteredEvent.php
+++ b/src/Event/InvokableEnteredEvent.php
@@ -6,8 +6,7 @@
 
 final class InvokableEnteredEvent implements EnterEventInterface
 {
-    /** @var string */
-    private $dependencyName;
+    private string $dependencyName;
 
     /** @psalm-var list<string> */
     private $instantiationStack;
diff --git a/src/Event/MissingFactoryDetectedEvent.php b/src/Event/MissingFactoryDetectedEvent.php
index 9c18058..7c1184f 100644
--- a/src/Event/MissingFactoryDetectedEvent.php
+++ b/src/Event/MissingFactoryDetectedEvent.php
@@ -8,8 +8,7 @@
 
 final class MissingFactoryDetectedEvent implements TerminalEventInterface
 {
-    /** @var string */
-    private $dependencyName;
+    private string $dependencyName;
 
     public function __construct(string $dependencyName)
     {
diff --git a/src/Event/UnresolvableParameterDetectedEvent.php b/src/Event/UnresolvableParameterDetectedEvent.php
index f1ab9b0..31bcce2 100644
--- a/src/Event/UnresolvableParameterDetectedEvent.php
+++ b/src/Event/UnresolvableParameterDetectedEvent.php
@@ -8,11 +8,9 @@
 
 final class UnresolvableParameterDetectedEvent implements TerminalEventInterface
 {
-    /** @var string */
-    private $dependencyName;
+    private string $dependencyName;
 
-    /** @var string */
-    private $paramName;
+    private string $paramName;
 
     public function __construct(string $dependencyName, string $paramName)
     {
diff --git a/src/EventCollector/EventCollector.php b/src/EventCollector/EventCollector.php
index fd60f8c..f3bf740 100644
--- a/src/EventCollector/EventCollector.php
+++ b/src/EventCollector/EventCollector.php
@@ -13,7 +13,7 @@ final class EventCollector implements EventCollectorInterface
      * @psalm-var list<EventInterface>
      * @var EventInterface[]
      */
-    private $events = [];
+    private array $events = [];
 
     /**
      * TODO preserve number of occurred events per dependency
diff --git a/src/EventReporter/ConsoleDetailedEventReporter.php b/src/EventReporter/ConsoleDetailedEventReporter.php
index dedcab3..abcf0fd 100644
--- a/src/EventReporter/ConsoleDetailedEventReporter.php
+++ b/src/EventReporter/ConsoleDetailedEventReporter.php
@@ -8,6 +8,7 @@
 use Laminas\ServiceManager\Inspector\Event\EventInterface;
 use Laminas\ServiceManager\Inspector\Event\TerminalEventInterface;
 use Laminas\ServiceManager\Inspector\EventReporter\ConsoleColor\ConsoleColorInterface;
+use Laminas\ServiceManager\Inspector\EventReporter\ConsoleSummaryEventReporter;
 use Symfony\Component\Console\Output\OutputInterface;
 
 use function count;
@@ -16,11 +17,9 @@
 
 final class ConsoleDetailedEventReporter implements EventReporterInterface
 {
-    /** @var ConsoleColorInterface */
-    private $consoleColor;
+    private ConsoleColorInterface $consoleColor;
 
-    /** @var ConsoleSummaryEventReporter */
-    private $summaryReporter;
+    private ConsoleSummaryEventReporter $summaryReporter;
 
     public function __construct(ConsoleColorInterface $consoleColor, ConsoleSummaryEventReporter $summaryReporter)
     {
diff --git a/src/EventReporter/ConsoleSummaryEventReporter.php b/src/EventReporter/ConsoleSummaryEventReporter.php
index 2e2973e..bca7779 100644
--- a/src/EventReporter/ConsoleSummaryEventReporter.php
+++ b/src/EventReporter/ConsoleSummaryEventReporter.php
@@ -18,8 +18,7 @@
 
 class ConsoleSummaryEventReporter implements EventReporterInterface
 {
-    /** @var ConsoleColorInterface */
-    private $consoleColor;
+    private ConsoleColorInterface $consoleColor;
 
     public function __construct(ConsoleColorInterface $consoleColor)
     {
diff --git a/src/Scanner/ReflectionBasedDependencyScanner.php b/src/Scanner/ReflectionBasedDependencyScanner.php
index e3bbfa2..06efcb4 100644
--- a/src/Scanner/ReflectionBasedDependencyScanner.php
+++ b/src/Scanner/ReflectionBasedDependencyScanner.php
@@ -27,11 +27,9 @@ final class ReflectionBasedDependencyScanner implements DependencyScannerInterfa
         'Zend\ServiceManager\AbstractFactory\ReflectionBasedAbstractFactory',
     ];
 
-    /** @var DependencyConfigInterface */
-    private $config;
+    private DependencyConfigInterface $config;
 
-    /** @var EventCollectorInterface */
-    private $eventCollector;
+    private EventCollectorInterface $eventCollector;
 
     public function __construct(DependencyConfigInterface $config, EventCollectorInterface $eventCollector)
     {
diff --git a/src/Traverser/Traverser.php b/src/Traverser/Traverser.php
index a08b5ae..be54fec 100644
--- a/src/Traverser/Traverser.php
+++ b/src/Traverser/Traverser.php
@@ -25,14 +25,11 @@
  */
 final class Traverser implements TraverserInterface
 {
-    /** @var DependencyConfigInterface */
-    private $config;
+    private DependencyConfigInterface $config;
 
-    /** @var DependencyScannerInterface */
-    private $dependencyScanner;
+    private DependencyScannerInterface $dependencyScanner;
 
-    /** @var EventCollectorInterface */
-    private $eventCollector;
+    private EventCollectorInterface $eventCollector;
 
     public function __construct(
         DependencyConfigInterface $config,