diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index a5a20be..861fd89 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -9,11 +9,11 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        php: ['8.1', '8.2']
+        php: ['8.2']
         composer-flags: ['--prefer-stable']
         can-fail: [false]
         include:
-          - php: '8.1'
+          - php: '8.2'
             composer-flags: '--prefer-stable --prefer-lowest'
             can-fail: false
 
diff --git a/.php-cs-fixer.php b/.php-cs-fixer.php
index 78d2631..d62699e 100644
--- a/.php-cs-fixer.php
+++ b/.php-cs-fixer.php
@@ -4,9 +4,9 @@
     ->setRules([
         '@Symfony' => true,
         '@Symfony:risky' => true,
-        '@PHP81Migration' => true,
+        '@PHP82Migration' => true,
         '@PHP80Migration:risky' => true,
-        '@PHPUnit84Migration:risky' => true,
+        '@PHPUnit100Migration:risky' => true,
         'array_syntax' => ['syntax' => 'short'],
         'blank_line_after_opening_tag' => false,
         'declare_strict_types' => false,
diff --git a/composer.json b/composer.json
index b2972b1..505291f 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
     ],
     "license": "MIT",
     "require": {
-        "php": "8.1.* || 8.2.*",
+        "php": "8.2.*",
         "guzzlehttp/psr7": "^2.4",
         "psr/http-message": "^1.0 || ^2.0",
         "ratchet/rfc6455": "^0.3.1",
@@ -22,12 +22,12 @@
         "ext-session": "*",
         "ext-sockets": "*",
         "phpstan/extension-installer": "^1.2",
-        "phpstan/phpstan": "1.10.33",
+        "phpstan/phpstan": "1.10.34",
         "phpstan/phpstan-phpunit": "1.3.14",
-        "phpunit/phpunit": "10.3.3",
+        "phpunit/phpunit": "10.3.4",
         "psr/container": "^1.0 || ^2.0",
         "psr/event-dispatcher": "^1.0",
-        "rector/rector": "0.18.2"
+        "rector/rector": "0.18.3"
     },
     "conflict": {
         "psr/container": ">=3.0",
diff --git a/docs/intro.md b/docs/intro.md
index 05b69e5..ab775bb 100644
--- a/docs/intro.md
+++ b/docs/intro.md
@@ -10,4 +10,4 @@ The below table shows the support status and supported PHP versions for each maj
 
 | Version | Status         | PHP Versions |
 |---------|----------------|--------------|
-| 1.x     | In Development | 8.1          |
+| 1.x     | In Development | 8.2          |
diff --git a/rector.php b/rector.php
index 8b6080f..050b9b1 100644
--- a/rector.php
+++ b/rector.php
@@ -30,7 +30,7 @@
     ]);
 
     $rectorConfig->sets([
-        LevelSetList::UP_TO_PHP_81,
+        LevelSetList::UP_TO_PHP_82,
         SetList::CODE_QUALITY,
         PHPUnitLevelSetList::UP_TO_PHPUNIT_100,
     ]);
diff --git a/src/Connection/ClosesConnectionWithResponse.php b/src/Connection/ClosesConnectionWithResponse.php
index 5690a5c..1d9beaa 100644
--- a/src/Connection/ClosesConnectionWithResponse.php
+++ b/src/Connection/ClosesConnectionWithResponse.php
@@ -13,7 +13,7 @@
 trait ClosesConnectionWithResponse
 {
     /**
-     * @param int $code Status code
+     * @param int                            $code    Status code
      * @param array<string, string|string[]> $headers Response headers
      */
     private function close(Connection $connection, int $code = 400, array $headers = []): void
diff --git a/src/Connection/Event/ConnectionClosed.php b/src/Connection/Event/ConnectionClosed.php
index c8ff4f7..7433340 100644
--- a/src/Connection/Event/ConnectionClosed.php
+++ b/src/Connection/Event/ConnectionClosed.php
@@ -4,9 +4,9 @@
 
 use BabDev\WebSocket\Server\Connection;
 
-final class ConnectionClosed implements ConnectionAware
+final readonly class ConnectionClosed implements ConnectionAware
 {
-    public function __construct(private readonly Connection $connection) {}
+    public function __construct(private Connection $connection) {}
 
     public function getConnection(): Connection
     {
diff --git a/src/Connection/Event/ConnectionError.php b/src/Connection/Event/ConnectionError.php
index 9a1ea16..0313393 100644
--- a/src/Connection/Event/ConnectionError.php
+++ b/src/Connection/Event/ConnectionError.php
@@ -4,11 +4,11 @@
 
 use BabDev\WebSocket\Server\Connection;
 
-final class ConnectionError implements ConnectionAware
+final readonly class ConnectionError implements ConnectionAware
 {
     public function __construct(
-        private readonly Connection $connection,
-        private readonly \Throwable $throwable,
+        private Connection $connection,
+        private \Throwable $throwable,
     ) {}
 
     public function getConnection(): Connection
diff --git a/src/Connection/Event/ConnectionOpened.php b/src/Connection/Event/ConnectionOpened.php
index a317473..bc658b0 100644
--- a/src/Connection/Event/ConnectionOpened.php
+++ b/src/Connection/Event/ConnectionOpened.php
@@ -4,9 +4,9 @@
 
 use BabDev\WebSocket\Server\Connection;
 
-final class ConnectionOpened implements ConnectionAware
+final readonly class ConnectionOpened implements ConnectionAware
 {
-    public function __construct(private readonly Connection $connection) {}
+    public function __construct(private Connection $connection) {}
 
     public function getConnection(): Connection
     {
diff --git a/src/Connection/ReactSocketConnection.php b/src/Connection/ReactSocketConnection.php
index 8e2e492..620a5cf 100644
--- a/src/Connection/ReactSocketConnection.php
+++ b/src/Connection/ReactSocketConnection.php
@@ -9,11 +9,11 @@
  * The React socket connection is a connection class wrapping a {@see ConnectionInterface}
  * from the `react/socket` package.
  */
-final class ReactSocketConnection implements Connection
+final readonly class ReactSocketConnection implements Connection
 {
     public function __construct(
-        private readonly ConnectionInterface $connection,
-        private readonly AttributeStore $attributeStore,
+        private ConnectionInterface $connection,
+        private AttributeStore $attributeStore,
     ) {}
 
     public function getAttributeStore(): AttributeStore
diff --git a/src/Http/Middleware/ParseHttpRequest.php b/src/Http/Middleware/ParseHttpRequest.php
index b6c967f..331cdf1 100644
--- a/src/Http/Middleware/ParseHttpRequest.php
+++ b/src/Http/Middleware/ParseHttpRequest.php
@@ -14,13 +14,13 @@
 /**
  * The parse HTTP request server middleware transforms the incoming HTTP request into a {@see RequestInterface} object.
  */
-final class ParseHttpRequest implements ServerMiddleware
+final readonly class ParseHttpRequest implements ServerMiddleware
 {
     use ClosesConnectionWithResponse;
 
     public function __construct(
-        private readonly ServerMiddleware $middleware,
-        private readonly RequestParser $requestParser = new GuzzleRequestParser(),
+        private ServerMiddleware $middleware,
+        private RequestParser $requestParser = new GuzzleRequestParser(),
     ) {}
 
     /**
diff --git a/src/Session/Middleware/InitializeSession.php b/src/Session/Middleware/InitializeSession.php
index f9f29b5..4f86c35 100644
--- a/src/Session/Middleware/InitializeSession.php
+++ b/src/Session/Middleware/InitializeSession.php
@@ -19,12 +19,12 @@
  * This middleware uses Symfony's HttpFoundation component to interact with the session data. Applications
  * using another session service will need their own middleware component.
  */
-final class InitializeSession implements ServerMiddleware
+final readonly class InitializeSession implements ServerMiddleware
 {
     public function __construct(
-        private readonly ServerMiddleware $middleware,
-        private readonly SessionFactoryInterface $sessionFactory,
-        private readonly OptionsHandler $optionsHandler = new IniOptionsHandler(),
+        private ServerMiddleware $middleware,
+        private SessionFactoryInterface $sessionFactory,
+        private OptionsHandler $optionsHandler = new IniOptionsHandler(),
     ) {}
 
     /**
diff --git a/src/Session/SessionFactory.php b/src/Session/SessionFactory.php
index a980631..0c0824b 100644
--- a/src/Session/SessionFactory.php
+++ b/src/Session/SessionFactory.php
@@ -7,9 +7,9 @@
 use Symfony\Component\HttpFoundation\Session\SessionInterface;
 use Symfony\Component\HttpFoundation\Session\Storage\SessionStorageFactoryInterface;
 
-final class SessionFactory implements SessionFactoryInterface
+final readonly class SessionFactory implements SessionFactoryInterface
 {
-    public function __construct(private readonly SessionStorageFactoryInterface $storageFactory) {}
+    public function __construct(private SessionStorageFactoryInterface $storageFactory) {}
 
     public function createSession(): SessionInterface
     {
diff --git a/src/Session/Storage/ReadOnlyNativeSessionStorageFactory.php b/src/Session/Storage/ReadOnlyNativeSessionStorageFactory.php
index 8aa67b1..f6adb5c 100644
--- a/src/Session/Storage/ReadOnlyNativeSessionStorageFactory.php
+++ b/src/Session/Storage/ReadOnlyNativeSessionStorageFactory.php
@@ -11,14 +11,14 @@
 use Symfony\Component\HttpFoundation\Session\Storage\SessionStorageFactoryInterface;
 use Symfony\Component\HttpFoundation\Session\Storage\SessionStorageInterface;
 
-final class ReadOnlyNativeSessionStorageFactory implements SessionStorageFactoryInterface
+final readonly class ReadOnlyNativeSessionStorageFactory implements SessionStorageFactoryInterface
 {
     public function __construct(
-        private readonly OptionsHandler $optionsHandler = new IniOptionsHandler(),
-        private readonly ?Reader $reader = null,
-        private readonly array $options = [],
-        private readonly AbstractProxy|\SessionHandlerInterface|null $handler = null,
-        private readonly ?MetadataBag $metaBag = null
+        private OptionsHandler $optionsHandler = new IniOptionsHandler(),
+        private ?Reader $reader = null,
+        private array $options = [],
+        private AbstractProxy|\SessionHandlerInterface|null $handler = null,
+        private ?MetadataBag $metaBag = null
     ) {}
 
     public function createStorage(?Request $request): SessionStorageInterface
diff --git a/src/WAMP/DefaultWAMPConnection.php b/src/WAMP/DefaultWAMPConnection.php
index eb5e4cc..0dd2a5c 100644
--- a/src/WAMP/DefaultWAMPConnection.php
+++ b/src/WAMP/DefaultWAMPConnection.php
@@ -13,11 +13,9 @@
  * The WAMP connection is a connection class decorating another {@see Connection} adding helper methods to
  * send WAMP messages to the connected client.
  */
-final class DefaultWAMPConnection implements WAMPConnection
+final readonly class DefaultWAMPConnection implements WAMPConnection
 {
-    public function __construct(
-        private readonly Connection $connection,
-    ) {}
+    public function __construct(private Connection $connection) {}
 
     public function getAttributeStore(): AttributeStore
     {
diff --git a/src/WAMP/MessageHandler/PsrContainerMessageHandlerResolver.php b/src/WAMP/MessageHandler/PsrContainerMessageHandlerResolver.php
index d892f7a..1293a4f 100644
--- a/src/WAMP/MessageHandler/PsrContainerMessageHandlerResolver.php
+++ b/src/WAMP/MessageHandler/PsrContainerMessageHandlerResolver.php
@@ -14,9 +14,9 @@
  * The PSR container message handler resolver is a message handler resolver which returns a message handler set on the route's
  * "_controller" attribute or attempts to locate the message handler from a PSR-11 compatible container.
  */
-final class PsrContainerMessageHandlerResolver implements MessageHandlerResolver
+final readonly class PsrContainerMessageHandlerResolver implements MessageHandlerResolver
 {
-    public function __construct(private readonly ContainerInterface $container) {}
+    public function __construct(private ContainerInterface $container) {}
 
     /**
      * @throws InvalidMessageHandler if the resolved object is not a valid message handler
diff --git a/src/WAMP/Middleware/DispatchMessageToHandler.php b/src/WAMP/Middleware/DispatchMessageToHandler.php
index 5d3dc8d..5905c3d 100644
--- a/src/WAMP/Middleware/DispatchMessageToHandler.php
+++ b/src/WAMP/Middleware/DispatchMessageToHandler.php
@@ -41,12 +41,12 @@
  * This middleware uses Symfony's Routing component to create a router for the server application. Applications
  * choosing to use another router service will need their own middleware component.
  */
-final class DispatchMessageToHandler implements WAMPServerMiddleware
+final readonly class DispatchMessageToHandler implements WAMPServerMiddleware
 {
     public function __construct(
-        private readonly UrlMatcherInterface $matcher,
-        private readonly MessageHandlerResolver $resolver,
-        private readonly ?EventDispatcherInterface $dispatcher = null,
+        private UrlMatcherInterface $matcher,
+        private MessageHandlerResolver $resolver,
+        private ?EventDispatcherInterface $dispatcher = null,
     ) {}
 
     /**
diff --git a/src/WAMP/Middleware/UpdateTopicSubscriptions.php b/src/WAMP/Middleware/UpdateTopicSubscriptions.php
index a8e50d9..b0e1aac 100644
--- a/src/WAMP/Middleware/UpdateTopicSubscriptions.php
+++ b/src/WAMP/Middleware/UpdateTopicSubscriptions.php
@@ -13,11 +13,11 @@
  * The update topic subscriptions server middleware is responsible for updating the list of connections for each
  * active topic.
  */
-final class UpdateTopicSubscriptions implements WAMPServerMiddleware
+final readonly class UpdateTopicSubscriptions implements WAMPServerMiddleware
 {
     public function __construct(
-        private readonly WAMPServerMiddleware $middleware,
-        private readonly TopicRegistry $topicRegistry,
+        private WAMPServerMiddleware $middleware,
+        private TopicRegistry $topicRegistry,
     ) {}
 
     /**
diff --git a/src/WAMP/Topic.php b/src/WAMP/Topic.php
index 3539d83..c2d591d 100644
--- a/src/WAMP/Topic.php
+++ b/src/WAMP/Topic.php
@@ -10,14 +10,14 @@
  *
  * @implements \IteratorAggregate<array-key, WAMPConnection>
  */
-final class Topic implements \IteratorAggregate, \Countable, \Stringable
+final readonly class Topic implements \IteratorAggregate, \Countable, \Stringable
 {
     /**
      * @var \SplObjectStorage<WAMPConnection, null>
      */
-    private readonly \SplObjectStorage $subscribers;
+    private \SplObjectStorage $subscribers;
 
-    public function __construct(public readonly string $id)
+    public function __construct(public string $id)
     {
         $this->subscribers = new \SplObjectStorage();
     }
diff --git a/src/WAMP/WAMPMessageRequest.php b/src/WAMP/WAMPMessageRequest.php
index c77d5a4..1711535 100644
--- a/src/WAMP/WAMPMessageRequest.php
+++ b/src/WAMP/WAMPMessageRequest.php
@@ -7,7 +7,7 @@
 /**
  * The WAMP message request class encapsulates the matched route information for an incoming WAMP message.
  */
-final class WAMPMessageRequest
+final readonly class WAMPMessageRequest
 {
-    public function __construct(public readonly ParameterBag $attributes) {}
+    public function __construct(public ParameterBag $attributes) {}
 }
diff --git a/src/WebSocket/DefaultWebSocketConnection.php b/src/WebSocket/DefaultWebSocketConnection.php
index 56c2101..de35d07 100644
--- a/src/WebSocket/DefaultWebSocketConnection.php
+++ b/src/WebSocket/DefaultWebSocketConnection.php
@@ -11,9 +11,9 @@
  * The websocket connection is a connection class decorating another {@see Connection} adding support for
  * processing messages using the `ratchet/rfc6455` package.
  */
-final class DefaultWebSocketConnection implements WebSocketConnection
+final readonly class DefaultWebSocketConnection implements WebSocketConnection
 {
-    public function __construct(private readonly Connection $connection) {}
+    public function __construct(private Connection $connection) {}
 
     public function getAttributeStore(): AttributeStore
     {
diff --git a/src/WebSocket/WebSocketConnectionContext.php b/src/WebSocket/WebSocketConnectionContext.php
index 6bfba43..6159f17 100644
--- a/src/WebSocket/WebSocketConnectionContext.php
+++ b/src/WebSocket/WebSocketConnectionContext.php
@@ -7,10 +7,10 @@
 /**
  * The websocket connection context is a data object holding a reference to a connection and its message buffer.
  */
-final class WebSocketConnectionContext
+final readonly class WebSocketConnectionContext
 {
     public function __construct(
-        public readonly WebSocketConnection $connection,
-        public readonly MessageBuffer $buffer,
+        public WebSocketConnection $connection,
+        public MessageBuffer $buffer,
     ) {}
 }
diff --git a/tests/WAMP/MessageHandler/Fixtures/AdvancedMessageHandler.php b/tests/WAMP/MessageHandler/Fixtures/AdvancedMessageHandler.php
index abe1e7f..6af39d8 100644
--- a/tests/WAMP/MessageHandler/Fixtures/AdvancedMessageHandler.php
+++ b/tests/WAMP/MessageHandler/Fixtures/AdvancedMessageHandler.php
@@ -4,7 +4,7 @@
 
 use BabDev\WebSocket\Server\MessageHandler;
 
-final class AdvancedMessageHandler implements MessageHandler
+final readonly class AdvancedMessageHandler implements MessageHandler
 {
-    public function __construct(public readonly string $name) {}
+    public function __construct(public string $name) {}
 }