diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 50e7ab5..ebee202 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -9,7 +9,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [ubuntu-latest]
-        php: [8.2, 8.1, 8.0]
+        php: [8.3, 8.2, 8.1, 8.0]
         dependency-version: [prefer-lowest, prefer-stable]
 
     name: P${{ matrix.php }} - ${{ matrix.dependency-version }} - ${{ matrix.os }}
diff --git a/.gitignore b/.gitignore
index 8b6c4c5..e311ad8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,5 @@ build
 composer.lock
 vendor
 .phpunit.result.cache
+.phpunit.cache
 .php-cs-fixer.cache
diff --git a/composer.json b/composer.json
index 073e6c0..f5642f6 100644
--- a/composer.json
+++ b/composer.json
@@ -16,13 +16,13 @@
         }
     ],
     "require": {
-        "php": "^7.2 | ^8.0 | ^8.1",
+        "php": "^7.2 | ^8.0",
         "clue/stdio-react": "^2.4",
         "jolicode/jolinotif": "^2.2",
-        "symfony/console": "^5 | ^6",
-        "symfony/finder": "^5.4 | ^6",
-        "symfony/process": "^5.4 | ^6",
-        "symfony/yaml": "^5.2 | ^6",
+        "symfony/console": "^5 | ^6 | ^7",
+        "symfony/finder": "^5.4 | ^6 | ^7",
+        "symfony/process": "^5.4 | ^6 | ^7",
+        "symfony/yaml": "^5.2 | ^6 | ^7",
         "yosymfony/resource-watcher": "^2.0 | ^3.0"
     },
     "conflict": {
@@ -30,7 +30,7 @@
         "symfony/console": "<5.2"
     },
     "require-dev": {
-        "phpunit/phpunit": "^8.6 | ^9.0"
+        "phpunit/phpunit": "^8.6 | ^9.0 | ^11.0"
     },
     "autoload": {
         "psr-4": {
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 22da30c..fa85dc7 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,13 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" bootstrap="vendor/autoload.php" backupGlobals="false" backupStaticAttributes="false" colors="true" verbose="true" convertErrorsToExceptions="true" convertNoticesToExceptions="true" convertWarningsToExceptions="true" processIsolation="false" stopOnFailure="false" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd">
-  <coverage>
-    <include>
-      <directory suffix=".php">src/</directory>
-    </include>
-  </coverage>
-  <testsuites>
-    <testsuite name="Spatie Test Suite">
-      <directory>tests</directory>
-    </testsuite>
-  </testsuites>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" bootstrap="vendor/autoload.php" backupGlobals="false" colors="true" processIsolation="false" stopOnFailure="false" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/11.1/phpunit.xsd" cacheDirectory=".phpunit.cache" backupStaticProperties="false">
+    <coverage/>
+    <testsuites>
+        <testsuite name="Spatie Test Suite">
+            <directory>tests</directory>
+        </testsuite>
+    </testsuites>
+    <source>
+        <include>
+            <directory suffix=".php">src/</directory>
+        </include>
+    </source>
 </phpunit>
diff --git a/src/ConsoleApplication.php b/src/ConsoleApplication.php
index 8303189..94faf80 100644
--- a/src/ConsoleApplication.php
+++ b/src/ConsoleApplication.php
@@ -13,7 +13,7 @@ public function __construct()
         $this->add(new WatcherCommand());
     }
 
-    public function getLongVersion()
+    public function getLongVersion(): string
     {
         return parent::getLongVersion().' by <comment>Spatie</comment>';
     }
diff --git a/src/WatcherCommand.php b/src/WatcherCommand.php
index 3255cc1..f91b97c 100644
--- a/src/WatcherCommand.php
+++ b/src/WatcherCommand.php
@@ -19,7 +19,7 @@ protected function configure()
             ->addArgument('phpunit-options', InputArgument::OPTIONAL, 'Options passed to phpunit');
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $options = $this->determineOptions($input);
 
@@ -28,6 +28,8 @@ protected function execute(InputInterface $input, OutputInterface $output)
         $this->displayOptions($options, $input, $output);
 
         $watcher->startWatching();
+
+        return 0;
     }
 
     protected function determineOptions(InputInterface $input): array
diff --git a/tests/PhpunitWatcherTest.php b/tests/PhpunitWatcherTest.php
index c3178fb..59d6f4a 100644
--- a/tests/PhpunitWatcherTest.php
+++ b/tests/PhpunitWatcherTest.php
@@ -5,10 +5,11 @@
 use PHPUnit\Framework\TestCase;
 use Spatie\PhpUnitWatcher\OS;
 use Symfony\Component\Process\Process;
+use PHPUnit\Framework\Attributes\Test;
 
 class PhpunitWatcherTest extends TestCase
 {
-    /** @test */
+    #[Test]
     public function the_watcher_can_be_executed()
     {
         $process = new Process(OS::isOnWindows() ? ['php', 'phpunit-watcher'] : ['./phpunit-watcher']);
diff --git a/tests/WatcherCommandTest.php b/tests/WatcherCommandTest.php
index 33492b1..c320e74 100644
--- a/tests/WatcherCommandTest.php
+++ b/tests/WatcherCommandTest.php
@@ -2,12 +2,13 @@
 
 namespace Spatie\PhpUnitWatcher\Test;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Spatie\PhpUnitWatcher\WatcherCommand;
 
 class WatcherCommandTest extends TestCase
 {
-    /** @test */
+    #[Test]
     public function it_can_be_instantiated()
     {
         $command = new WatcherCommand();
diff --git a/tests/WatcherFactoryTest.php b/tests/WatcherFactoryTest.php
index bc379c1..c69855f 100644
--- a/tests/WatcherFactoryTest.php
+++ b/tests/WatcherFactoryTest.php
@@ -2,12 +2,13 @@
 
 namespace Spatie\PhpUnitWatcher\Test;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Spatie\PhpUnitWatcher\WatcherFactory;
 
 class WatcherFactoryTest extends TestCase
 {
-    /** @test */
+    #[Test]
     public function it_can_be_instantiated()
     {
         $factory = new WatcherFactory();
@@ -15,7 +16,7 @@ public function it_can_be_instantiated()
         $this->assertInstanceOf(WatcherFactory::class, $factory);
     }
 
-    /** @test */
+    #[Test]
     public function setting_notification_preserves_other_options()
     {
         $userOptions = [
@@ -32,7 +33,7 @@ public function setting_notification_preserves_other_options()
         $this->assertSame('*.php', $actualOptions['watch']['fileMask']);
     }
 
-    /** @test */
+    #[Test]
     public function setting_directories_preserves_other_options()
     {
         $userOptions = [