diff --git a/.github/workflows/auto-review.yaml b/.github/workflows/auto-review.yaml
index 1ee4494b7..9dbd4aa3a 100644
--- a/.github/workflows/auto-review.yaml
+++ b/.github/workflows/auto-review.yaml
@@ -45,6 +45,14 @@ jobs:
             -   name: Ensure that the PHP-CS-Fixer make target is up to date
                 run: make php_cs_fixer_install
 
+            -   name: Install Rector
+                uses: ramsey/composer-install@v2
+                with:
+                    working-directory: vendor-bin/rector
+
+            -   name: Ensure that the PHP-CS-Fixer make target is up to date
+                run: make rector_install
+
             -   run: make root_cs_lint
 
     composer-validate:
diff --git a/.github/workflows/requirement-checker.yaml b/.github/workflows/requirement-checker.yaml
index bdf341ec9..6c18066b9 100644
--- a/.github/workflows/requirement-checker.yaml
+++ b/.github/workflows/requirement-checker.yaml
@@ -48,6 +48,14 @@ jobs:
             -   name: Ensure that the PHP-CS-Fixer make target is up to date
                 run: make php_cs_fixer_install
 
+            -   name: Install Rector
+                uses: ramsey/composer-install@v2
+                with:
+                    working-directory: vendor-bin/rector
+
+            -   name: Ensure that the PHP-CS-Fixer make target is up to date
+                run: make rector_install
+
             -   name: Install the Composer dependencies
                 uses: ramsey/composer-install@v2
                 with:
diff --git a/Makefile b/Makefile
index 733138718..7d15e9df1 100644
--- a/Makefile
+++ b/Makefile
@@ -46,6 +46,9 @@ PHPBENCH = $(PHPBENCH_BIN)
 PHPBENCH_WITH_COMPACTORS_VENDOR_DIR = fixtures/bench/with-compactors/vendor
 PHPBENCH_WITHOUT_COMPACTORS_VENDOR_DIR = fixtures/bench/without-compactors/vendor
 
+RECTOR_BIN = vendor-bin/rector/vendor/bin/rector
+RECTOR = $(RECTOR_BIN)
+
 WEBSITE_SRC := mkdocs.yaml $(shell find doc)
 # This is defined in mkdocs.yaml#site_dir
 WEBSITE_OUTPUT = dist/website
@@ -162,7 +165,7 @@ cs:	 		 ## Fixes CS
 cs: root_cs requirement_checker_cs
 
 .PHONY: root_cs
-root_cs: gitignore_sort composer_normalize php_cs_fixer
+root_cs: gitignore_sort composer_normalize rector php_cs_fixer
 
 .PHONY: requirement_checker_cs
 requirement_checker_cs:
@@ -174,7 +177,7 @@ cs_lint: 	 	 ## Lints CS
 cs_lint: root_cs_lint requirement_checker_cs_lint
 
 .PHONY: root_cs_lint
-root_cs_lint: composer_normalize_lint php_cs_fixer_lint
+root_cs_lint: composer_normalize_lint rector_lint php_cs_fixer_lint
 
 .PHONY: requirement_checker_cs_lint
 requirement_checker_cs_lint:
@@ -188,6 +191,14 @@ php_cs_fixer: $(PHP_CS_FIXER_BIN) dist
 php_cs_fixer_lint: $(PHP_CS_FIXER_BIN) dist
 	$(PHP_CS_FIXER) fix --ansi --verbose --dry-run --diff
 
+.PHONY: rector
+rector: $(RECTOR_BIN)
+	$(RECTOR)
+
+.PHONY: rector_lint
+rector_lint: $(RECTOR_BIN)
+	$(RECTOR) --dry-run
+
 .PHONY: composer_normalize
 composer_normalize: composer.json vendor
 	composer normalize --ansi
@@ -406,6 +417,18 @@ vendor-bin/phpbench/composer.lock: vendor-bin/phpbench/composer.json
 	@echo "$(ERROR_COLOR)$(@) is not up to date. You may want to run the following command:$(NO_COLOR)"
 	@echo "$$ composer bin phpbench update --lock && touch -c $(@)"
 
+.PHONY: rector_install
+rector_install: $(RECTOR_BIN)
+
+$(RECTOR_BIN): vendor-bin/rector/vendor
+	touch -c $@
+vendor-bin/rector/vendor: vendor-bin/rector/composer.lock $(COMPOSER_BIN_PLUGIN_VENDOR)
+	composer bin rector install
+	touch -c $@
+vendor-bin/rector/composer.lock: vendor-bin/rector/composer.json
+	@echo "$(ERROR_COLOR)$(@) is not up to date. You may want to run the following command:$(NO_COLOR)"
+	@echo "$$ composer bin rector update --lock && touch -c $(@)"
+
 .PHONY: infection_install
 infection_install: $(INFECTION_BIN)
 
diff --git a/rector.php b/rector.php
index 9f19a2ac1..bfaf4a6a2 100644
--- a/rector.php
+++ b/rector.php
@@ -19,6 +19,15 @@
     $rectorConfig->importNames();
 
     $rectorConfig->sets([
-        LevelSetList::UP_TO_PHP_81,
+        LevelSetList::UP_TO_PHP_82,
+    ]);
+
+    $rectorConfig->skip([
+        \Rector\Php81\Rector\FuncCall\NullToStrictStringFuncCallArgRector::class,
+        \Rector\Php73\Rector\FuncCall\JsonThrowOnErrorRector::class,
+        \Rector\Php55\Rector\String_\StringClassNameToClassConstantRector::class => [
+            __DIR__.'/src/Configuration/Configuration.php',
+        ],
+        \Rector\Php73\Rector\String_\SensitiveHereNowDocRector::class,
     ]);
 };
diff --git a/requirement-checker/Makefile b/requirement-checker/Makefile
index 26eaef625..10c5e3f46 100644
--- a/requirement-checker/Makefile
+++ b/requirement-checker/Makefile
@@ -26,6 +26,9 @@ PHAR_EXTRACT = ../res/requirement-checker
 BOX_BIN = ../bin/box
 BOX = $(BOX_BIN)
 
+RECTOR_BIN = ../vendor-bin/rector/vendor/bin/rector
+RECTOR = $(RECTOR_BIN)
+
 DIFF = diff --strip-trailing-cr --ignore-all-space --side-by-side --suppress-common-lines
 
 
@@ -109,11 +112,11 @@ phpunit_autoreview: $(PHPUNIT_BIN) vendor
 
 .PHONY: cs
 cs:	 	## Fixes CS
-cs: gitignore_sort composer_normalize php_cs_fixer
+cs: gitignore_sort composer_normalize rector php_cs_fixer
 
 .PHONY: cs_lint
 cs_lint: 	## Checks CS
-cs_lint: composer_normalize_lint php_cs_fixer_lint
+cs_lint: composer_normalize_lint rector_lint php_cs_fixer_lint
 
 .PHONY: gitignore_sort
 gitignore_sort:
@@ -135,6 +138,28 @@ php_cs_fixer: $(PHP_CS_FIXER_BIN)
 php_cs_fixer_lint: $(PHP_CS_FIXER_BIN)
 	$(PHP_CS_FIXER) fix --ansi --verbose --dry-run --diff
 
+.PHONY: rector
+rector: rector_src rector_tests
+
+.PHONY: rector_src
+rector_src: $(RECTOR_BIN)
+	$(RECTOR) --config=rector-src.php
+
+.PHONY: rector_tests
+rector_tests: $(RECTOR_BIN)
+	$(RECTOR) --config=rector-tests.php
+
+.PHONY: rector_lint
+rector_lint: rector_lint_src rector_lint_tests
+
+.PHONY: rector_lint_src
+rector_lint_src: $(RECTOR_BIN)
+	$(RECTOR) --config=rector-src.php --dry-run
+
+.PHONY: rector_lint_tests
+rector_lint_tests: $(RECTOR_BIN)
+	$(RECTOR) --config=rector-tests.php --dry-run
+
 
 #
 # Tests
@@ -240,3 +265,6 @@ $(PHAR_EXTRACT): $(PHAR) $(BOX_BIN)
 
 $(BOX_BIN):
 	cd ..; $(MAKE) --file=Makefile bin/box
+
+$(RECTOR_BIN):
+	cd ..; $(MAKE) --file=Makefile rector_install
diff --git a/requirement-checker/rector-src.php b/requirement-checker/rector-src.php
new file mode 100644
index 000000000..ed8d99de4
--- /dev/null
+++ b/requirement-checker/rector-src.php
@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\Set\ValueObject\DowngradeLevelSetList;
+use Rector\Set\ValueObject\LevelSetList;
+
+$applyCommonConfig = require __DIR__.'/rector.php';
+
+return static function (RectorConfig $rectorConfig) use ($applyCommonConfig): void {
+    $applyCommonConfig($rectorConfig);
+
+    $rectorConfig->paths([
+        __DIR__ . '/src',
+    ]);
+
+    $rectorConfig->sets([
+        LevelSetList::UP_TO_PHP_72,
+        // DowngradeLevelSetList::DOWN_TO_PHP_72,
+    ]);
+};
diff --git a/requirement-checker/rector-tests.php b/requirement-checker/rector-tests.php
new file mode 100644
index 000000000..022c82102
--- /dev/null
+++ b/requirement-checker/rector-tests.php
@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\Php74\Rector\Closure\ClosureToArrowFunctionRector;
+use Rector\Set\ValueObject\LevelSetList;
+
+$applyCommonConfig = require __DIR__.'/rector.php';
+
+return static function (RectorConfig $rectorConfig) use ($applyCommonConfig): void {
+    $applyCommonConfig($rectorConfig);
+
+    $rectorConfig->paths([
+        __DIR__ . '/tests',
+    ]);
+
+    $rectorConfig->sets([
+        LevelSetList::UP_TO_PHP_82,
+    ]);
+
+    $rectorConfig->skip([
+        ClosureToArrowFunctionRector::class
+    ]);
+};
diff --git a/requirement-checker/rector.php b/requirement-checker/rector.php
new file mode 100644
index 000000000..55b3259b4
--- /dev/null
+++ b/requirement-checker/rector.php
@@ -0,0 +1,17 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\Set\ValueObject\DowngradeLevelSetList;
+use Rector\Set\ValueObject\LevelSetList;
+
+// Common configuration
+return static function (RectorConfig $rectorConfig): void {
+    $rectorConfig->autoloadPaths([
+        __DIR__ . '/vendor/autoload.php',
+        __DIR__ . '/../vendor-bin/rector/vendor/autoload.php',
+    ]);
+
+    $rectorConfig->importNames();
+};
diff --git a/requirement-checker/src/RequirementCollection.php b/requirement-checker/src/RequirementCollection.php
index f337b09f2..6710215af 100644
--- a/requirement-checker/src/RequirementCollection.php
+++ b/requirement-checker/src/RequirementCollection.php
@@ -45,9 +45,7 @@ final class RequirementCollection implements IteratorAggregate, Countable
      */
     public function __construct($phpIniPath = null)
     {
-        $this->phpIniPath = null === $phpIniPath
-            ? get_cfg_var('cfg_file_path')
-            : $phpIniPath;
+        $this->phpIniPath = $phpIniPath ?? get_cfg_var('cfg_file_path');
     }
 
     /**
diff --git a/requirement-checker/tests/RequirementTest.php b/requirement-checker/tests/RequirementTest.php
index 4de0e0a1a..594cbda85 100644
--- a/requirement-checker/tests/RequirementTest.php
+++ b/requirement-checker/tests/RequirementTest.php
@@ -57,7 +57,7 @@ public function __invoke(): bool
             $requirement->isFulfilled();
 
             self::fail('Expected exception to be thrown.');
-        } catch (Error $error) {
+        } catch (Error) {
             self::assertTrue(true);
         }
     }
diff --git a/src/Annotation/DocblockAnnotationParser.php b/src/Annotation/DocblockAnnotationParser.php
index b53fb1cce..bb12a6ed6 100644
--- a/src/Annotation/DocblockAnnotationParser.php
+++ b/src/Annotation/DocblockAnnotationParser.php
@@ -33,14 +33,14 @@ final class DocblockAnnotationParser
     /**
      * @var array<string, mixed>
      */
-    private array $ignoredAnnotationsAsKeys;
+    private readonly array $ignoredAnnotationsAsKeys;
 
     /**
      * @param string[] $ignoredAnnotations
      */
     public function __construct(
-        private DocBlockFactoryInterface $factory,
-        private Formatter $tagsFormatter,
+        private readonly DocBlockFactoryInterface $factory,
+        private readonly Formatter $tagsFormatter,
         array $ignoredAnnotations,
     ) {
         $this->ignoredAnnotationsAsKeys = array_flip($ignoredAnnotations);
diff --git a/src/Box.php b/src/Box.php
index 39d3fb747..860274d85 100644
--- a/src/Box.php
+++ b/src/Box.php
@@ -463,12 +463,12 @@ private function processContents(array $files): array
 
             // Keep the fully qualified call here since this function may be executed without the right autoloading
             // mechanism
-            \KevinGH\Box\register_aliases();
+            register_aliases();
             if ($enableParallelization) {
-                \KevinGH\Box\register_error_handler();
+                register_error_handler();
             }
 
-            $contents = \Fidry\FileSystem\FS::getFileContents($file);
+            $contents = FS::getFileContents($file);
 
             $local = $mapFile($file);
 
diff --git a/src/Compactor/Compactors.php b/src/Compactor/Compactors.php
index f96bc2e60..9a58f0011 100644
--- a/src/Compactor/Compactors.php
+++ b/src/Compactor/Compactors.php
@@ -28,7 +28,7 @@ final class Compactors implements Compactor, Countable
     /**
      * @var Compactor[]
      */
-    private array $compactors;
+    private readonly array $compactors;
 
     private ?PhpScoper $scoperCompactor = null;
 
diff --git a/src/Compactor/FileExtensionCompactor.php b/src/Compactor/FileExtensionCompactor.php
index 4c62dbb8d..15fdce28c 100644
--- a/src/Compactor/FileExtensionCompactor.php
+++ b/src/Compactor/FileExtensionCompactor.php
@@ -29,7 +29,7 @@ abstract class FileExtensionCompactor extends BaseCompactor
     /**
      * @var string[]
      */
-    private array $extensions;
+    private readonly array $extensions;
 
     /**
      * @param string[] $extensions the list of supported file extensions
diff --git a/src/Compactor/Php.php b/src/Compactor/Php.php
index 6f0d1e077..6d8d0c34e 100644
--- a/src/Compactor/Php.php
+++ b/src/Compactor/Php.php
@@ -63,7 +63,7 @@ public static function create(array $ignoredAnnotations): self
     }
 
     public function __construct(
-        private ?DocblockAnnotationParser $annotationParser,
+        private readonly ?DocblockAnnotationParser $annotationParser,
         array $extensions = ['php'],
     ) {
         parent::__construct($extensions);
diff --git a/src/Compactor/PhpScoper.php b/src/Compactor/PhpScoper.php
index a2b410e5f..bd6e2f09d 100644
--- a/src/Compactor/PhpScoper.php
+++ b/src/Compactor/PhpScoper.php
@@ -20,7 +20,7 @@
 /**
  * @private
  */
-final class PhpScoper implements Compactor
+final readonly class PhpScoper implements Compactor
 {
     public function __construct(private Scoper $scoper)
     {
diff --git a/src/Compactor/Placeholder.php b/src/Compactor/Placeholder.php
index 66f66835e..91b0f3f4b 100644
--- a/src/Compactor/Placeholder.php
+++ b/src/Compactor/Placeholder.php
@@ -23,7 +23,7 @@ final class Placeholder implements Compactor
     /**
      * @var scalar[]
      */
-    private array $placeholders;
+    private readonly array $placeholders;
 
     /**
      * @param scalar[] $placeholders
diff --git a/src/Composer/CompilerPsrLogger.php b/src/Composer/CompilerPsrLogger.php
index fdd52fdca..8f2ede149 100644
--- a/src/Composer/CompilerPsrLogger.php
+++ b/src/Composer/CompilerPsrLogger.php
@@ -24,7 +24,7 @@
 final class CompilerPsrLogger extends AbstractLogger
 {
     public function __construct(
-        private CompilerLogger $decoratedLogger,
+        private readonly CompilerLogger $decoratedLogger,
     ) {
     }
 
diff --git a/src/Composer/ComposerFile.php b/src/Composer/ComposerFile.php
index 1d362361b..dc8a96cea 100644
--- a/src/Composer/ComposerFile.php
+++ b/src/Composer/ComposerFile.php
@@ -18,8 +18,8 @@
 
 final class ComposerFile
 {
-    private ?string $path;
-    private array $contents;
+    private readonly ?string $path;
+    private readonly array $contents;
 
     public static function createEmpty(): self
     {
diff --git a/src/Composer/ComposerFiles.php b/src/Composer/ComposerFiles.php
index 79a36ab14..9a239043d 100644
--- a/src/Composer/ComposerFiles.php
+++ b/src/Composer/ComposerFiles.php
@@ -18,7 +18,7 @@
 use function array_map;
 use function array_values;
 
-final class ComposerFiles
+final readonly class ComposerFiles
 {
     public static function createEmpty(): self
     {
@@ -30,9 +30,9 @@ public static function createEmpty(): self
     }
 
     public function __construct(
-        private readonly ComposerFile $composerJson,
-        private readonly ComposerFile $composerLock,
-        private readonly ComposerFile $installedJson,
+        private ComposerFile $composerJson,
+        private ComposerFile $composerLock,
+        private ComposerFile $installedJson,
     ) {
     }
 
diff --git a/src/Composer/ComposerOrchestrator.php b/src/Composer/ComposerOrchestrator.php
index 02c7f74ed..91f6c40ea 100644
--- a/src/Composer/ComposerOrchestrator.php
+++ b/src/Composer/ComposerOrchestrator.php
@@ -48,9 +48,9 @@ public static function create(): self
     }
 
     public function __construct(
-        private ComposerProcessFactory $processFactory,
-        private LoggerInterface $logger,
-        private FileSystem $fileSystem,
+        private readonly ComposerProcessFactory $processFactory,
+        private readonly LoggerInterface $logger,
+        private readonly FileSystem $fileSystem,
     ) {
     }
 
diff --git a/src/Composer/ComposerProcessFactory.php b/src/Composer/ComposerProcessFactory.php
index 6584ce950..16f8891cc 100644
--- a/src/Composer/ComposerProcessFactory.php
+++ b/src/Composer/ComposerProcessFactory.php
@@ -49,10 +49,10 @@ public static function create(
      * @param Closure():string $composerExecutableFactory
      */
     public function __construct(
-        private Closure $composerExecutableFactory,
+        private readonly Closure $composerExecutableFactory,
         private ?string $verbosity,
-        private bool $ansi,
-        private array $defaultEnvironmentVariables,
+        private readonly bool $ansi,
+        private readonly array $defaultEnvironmentVariables,
     ) {
     }
 
diff --git a/src/Configuration/Configuration.php b/src/Configuration/Configuration.php
index ddc5b051c..b15dd6ed2 100644
--- a/src/Configuration/Configuration.php
+++ b/src/Configuration/Configuration.php
@@ -209,8 +209,8 @@ final class Configuration
     private const STUB_KEY = 'stub';
     private const TIMESTAMP = 'timestamp';
 
-    private ?string $mainScriptPath;
-    private ?string $mainScriptContents;
+    private readonly ?string $mainScriptPath;
+    private readonly ?string $mainScriptContents;
     private ?string $composerBin = null;
 
     public static function create(?string $file, stdClass $raw): self
@@ -418,41 +418,41 @@ public static function create(?string $file, stdClass $raw): self
      * @param string[]               $recommendations
      */
     private function __construct(
-        private ?string $file,
-        private string $alias,
-        private string $basePath,
-        private ComposerFile $composerJson,
-        private ComposerFile $composerLock,
-        private array $files,
-        private array $binaryFiles,
-        private bool $autodiscoveredFiles,
-        private bool $dumpAutoload,
-        private bool $excludeComposerFiles,
-        private bool $excludeDevFiles,
-        private Compactors|array $compactors,
-        private CompressionAlgorithm $compressionAlgorithm,
-        private int|string|null $fileMode,
+        private readonly ?string $file,
+        private readonly string $alias,
+        private readonly string $basePath,
+        private readonly ComposerFile $composerJson,
+        private readonly ComposerFile $composerLock,
+        private readonly array $files,
+        private readonly array $binaryFiles,
+        private readonly bool $autodiscoveredFiles,
+        private readonly bool $dumpAutoload,
+        private readonly bool $excludeComposerFiles,
+        private readonly bool $excludeDevFiles,
+        private readonly Compactors|array $compactors,
+        private readonly CompressionAlgorithm $compressionAlgorithm,
+        private readonly int|string|null $fileMode,
         ?string $mainScriptPath,
         ?string $mainScriptContents,
-        private MapFile $fileMapper,
-        private mixed $metadata,
-        private string $tmpOutputPath,
-        private string $outputPath,
-        private ?string $privateKeyPassphrase,
-        private ?string $privateKeyPath,
-        private bool $promptForPrivateKey,
-        private array $processedReplacements,
-        private ?string $shebang,
-        private SigningAlgorithm $signingAlgorithm,
-        private ?string $stubBannerContents,
-        private ?string $stubBannerPath,
-        private ?string $stubPath,
-        private bool $isInterceptFileFuncs,
-        private bool $isStubGenerated,
-        private ?DateTimeImmutable $timestamp,
-        private bool $checkRequirements,
-        private array $warnings,
-        private array $recommendations,
+        private readonly MapFile $fileMapper,
+        private readonly mixed $metadata,
+        private readonly string $tmpOutputPath,
+        private readonly string $outputPath,
+        private readonly ?string $privateKeyPassphrase,
+        private readonly ?string $privateKeyPath,
+        private readonly bool $promptForPrivateKey,
+        private readonly array $processedReplacements,
+        private readonly ?string $shebang,
+        private readonly SigningAlgorithm $signingAlgorithm,
+        private readonly ?string $stubBannerContents,
+        private readonly ?string $stubBannerPath,
+        private readonly ?string $stubPath,
+        private readonly bool $isInterceptFileFuncs,
+        private readonly bool $isStubGenerated,
+        private readonly ?DateTimeImmutable $timestamp,
+        private readonly bool $checkRequirements,
+        private readonly array $warnings,
+        private readonly array $recommendations,
     ) {
         if (null === $mainScriptPath) {
             Assert::null($mainScriptContents);
diff --git a/src/Configuration/ConfigurationLoader.php b/src/Configuration/ConfigurationLoader.php
index 81405c65d..6a2dabd1b 100644
--- a/src/Configuration/ConfigurationLoader.php
+++ b/src/Configuration/ConfigurationLoader.php
@@ -20,11 +20,11 @@
 /**
  * @private
  */
-final class ConfigurationLoader
+final readonly class ConfigurationLoader
 {
     private const SCHEMA_FILE = __DIR__.'/../../res/schema.json';
 
-    public function __construct(private readonly Json $json = new Json())
+    public function __construct(private Json $json = new Json())
     {
     }
 
diff --git a/src/Configuration/ExportableConfiguration.php b/src/Configuration/ExportableConfiguration.php
index 2bc2ff595..a4151acb6 100644
--- a/src/Configuration/ExportableConfiguration.php
+++ b/src/Configuration/ExportableConfiguration.php
@@ -34,7 +34,7 @@
  *
  * @internal
  */
-final class ExportableConfiguration
+final readonly class ExportableConfiguration
 {
     public static function create(Configuration $configuration): self
     {
@@ -114,40 +114,40 @@ private static function createPathNormalizer(string $basePath): Closure
 
     /** @noinspection PhpPropertyOnlyWrittenInspection */
     private function __construct(
-        private readonly ?string $file,
-        private readonly string $alias,
-        private readonly string $basePath,
-        private readonly ComposerFile $composerJson,
-        private readonly ComposerFile $composerLock,
-        private readonly array $files,
-        private readonly array $binaryFiles,
-        private readonly bool $autodiscoveredFiles,
-        private readonly bool $dumpAutoload,
-        private readonly bool $excludeComposerFiles,
-        private readonly bool $excludeDevFiles,
-        private readonly Compactors|array $compactors,
-        private readonly string $compressionAlgorithm,
-        private readonly int|string|null $fileMode,
-        private readonly ?string $mainScriptPath,
-        private readonly ?string $mainScriptContents,
-        private readonly MapFile $fileMapper,
-        private readonly mixed $metadata,
-        private readonly string $tmpOutputPath,
-        private readonly string $outputPath,
-        private readonly ?string $privateKeyPassphrase,
-        private readonly ?string $privateKeyPath,
-        private readonly bool $promptForPrivateKey,
-        private readonly array $processedReplacements,
-        private readonly ?string $shebang,
-        private readonly string $signingAlgorithm,
-        private readonly ?string $stubBannerContents,
-        private readonly ?string $stubBannerPath,
-        private readonly ?string $stubPath,
-        private readonly bool $isInterceptFileFuncs,
-        private readonly bool $isStubGenerated,
-        private readonly bool $checkRequirements,
-        private readonly array $warnings,
-        private readonly array $recommendations,
+        private ?string $file,
+        private string $alias,
+        private string $basePath,
+        private ComposerFile $composerJson,
+        private ComposerFile $composerLock,
+        private array $files,
+        private array $binaryFiles,
+        private bool $autodiscoveredFiles,
+        private bool $dumpAutoload,
+        private bool $excludeComposerFiles,
+        private bool $excludeDevFiles,
+        private Compactors|array $compactors,
+        private string $compressionAlgorithm,
+        private int|string|null $fileMode,
+        private ?string $mainScriptPath,
+        private ?string $mainScriptContents,
+        private MapFile $fileMapper,
+        private mixed $metadata,
+        private string $tmpOutputPath,
+        private string $outputPath,
+        private ?string $privateKeyPassphrase,
+        private ?string $privateKeyPath,
+        private bool $promptForPrivateKey,
+        private array $processedReplacements,
+        private ?string $shebang,
+        private string $signingAlgorithm,
+        private ?string $stubBannerContents,
+        private ?string $stubBannerPath,
+        private ?string $stubPath,
+        private bool $isInterceptFileFuncs,
+        private bool $isStubGenerated,
+        private bool $checkRequirements,
+        private array $warnings,
+        private array $recommendations,
     ) {
     }
 
diff --git a/src/Console/Application.php b/src/Console/Application.php
index 47d6e209b..193959766 100644
--- a/src/Console/Application.php
+++ b/src/Console/Application.php
@@ -15,6 +15,17 @@
 namespace KevinGH\Box\Console;
 
 use Fidry\Console\Application\Application as FidryApplication;
+use KevinGH\Box\Console\Command\Compile;
+use KevinGH\Box\Console\Command\Composer\ComposerCheckVersion;
+use KevinGH\Box\Console\Command\Composer\ComposerVendorDir;
+use KevinGH\Box\Console\Command\Diff;
+use KevinGH\Box\Console\Command\Extract;
+use KevinGH\Box\Console\Command\GenerateDockerFile;
+use KevinGH\Box\Console\Command\Info;
+use KevinGH\Box\Console\Command\Namespace_;
+use KevinGH\Box\Console\Command\Process;
+use KevinGH\Box\Console\Command\Validate;
+use KevinGH\Box\Console\Command\Verify;
 use function KevinGH\Box\get_box_version;
 use function sprintf;
 use function trim;
@@ -24,16 +35,16 @@
  */
 final class Application implements FidryApplication
 {
-    private string $version;
-    private string $releaseDate;
+    private readonly string $version;
+    private readonly string $releaseDate;
     private string $header;
 
     public function __construct(
-        private string $name = 'Box',
+        private readonly string $name = 'Box',
         ?string $version = null,
         string $releaseDate = '@release-date@',
-        private bool $autoExit = true,
-        private bool $catchExceptions = true,
+        private readonly bool $autoExit = true,
+        private readonly bool $catchExceptions = true,
     ) {
         $this->version = $version ?? get_box_version();
         $this->releaseDate = !str_contains($releaseDate, '@') ? $releaseDate : '';
@@ -78,17 +89,17 @@ public function getHeader(): string
     public function getCommands(): array
     {
         return [
-            new Command\Composer\ComposerCheckVersion(),
-            new Command\Composer\ComposerVendorDir(),
-            new Command\Compile($this->getHeader()),
-            new Command\Diff(),
-            new Command\Info(),
-            new Command\Process(),
-            new Command\Extract(),
-            new Command\Validate(),
-            new Command\Verify(),
-            new Command\GenerateDockerFile(),
-            new Command\Namespace_(),
+            new ComposerCheckVersion(),
+            new ComposerVendorDir(),
+            new Compile($this->getHeader()),
+            new Diff(),
+            new Info(),
+            new Process(),
+            new Extract(),
+            new Validate(),
+            new Verify(),
+            new GenerateDockerFile(),
+            new Namespace_(),
         ];
     }
 
diff --git a/src/Console/Command/Compile.php b/src/Console/Command/Compile.php
index 33d231208..6e1598f4c 100644
--- a/src/Console/Command/Compile.php
+++ b/src/Console/Command/Compile.php
@@ -111,7 +111,7 @@ final class Compile implements CommandAware
 
     private const DEBUG_DIR = '.box_dump';
 
-    public function __construct(private string $header)
+    public function __construct(private readonly string $header)
     {
     }
 
diff --git a/src/Console/Logger/CompilerLogger.php b/src/Console/Logger/CompilerLogger.php
index 5b19775f5..2cd3bc034 100644
--- a/src/Console/Logger/CompilerLogger.php
+++ b/src/Console/Logger/CompilerLogger.php
@@ -22,7 +22,7 @@
 /**
  * @internal
  */
-final class CompilerLogger
+final readonly class CompilerLogger
 {
     public const QUESTION_MARK_PREFIX = '?';
     public const STAR_PREFIX = '*';
@@ -30,7 +30,7 @@ final class CompilerLogger
     public const MINUS_PREFIX = '-';
     public const CHEVRON_PREFIX = '>';
 
-    public function __construct(private readonly IO $io)
+    public function __construct(private IO $io)
     {
     }
 
diff --git a/src/Console/PharInfoRenderer.php b/src/Console/PharInfoRenderer.php
index 14559216c..547781632 100644
--- a/src/Console/PharInfoRenderer.php
+++ b/src/Console/PharInfoRenderer.php
@@ -36,7 +36,6 @@
 use function implode;
 use function is_array;
 use function KevinGH\Box\format_size;
-use function KevinGH\Box\format_size as format_size1;
 use function key;
 use function preg_match;
 use function round;
@@ -307,7 +306,7 @@ public static function renderContent(
                         ? $splFileInfo->getFilename()
                         : $splFileInfo->getRelativePathname(),
                     $compressionLine,
-                    format_size1($compressionSize),
+                    format_size($compressionSize),
                 ),
                 $depth,
                 $indent,
diff --git a/src/Console/Php/PhpSettingsHandler.php b/src/Console/Php/PhpSettingsHandler.php
index 059716b90..59120dd0f 100644
--- a/src/Console/Php/PhpSettingsHandler.php
+++ b/src/Console/Php/PhpSettingsHandler.php
@@ -34,8 +34,8 @@
  */
 final class PhpSettingsHandler extends XdebugHandler
 {
-    private LoggerInterface $logger;
-    private bool $pharReadonly;
+    private readonly LoggerInterface $logger;
+    private readonly bool $pharReadonly;
 
     public function __construct(LoggerInterface $logger)
     {
diff --git a/src/DockerFileGenerator.php b/src/DockerFileGenerator.php
index f8ae840a9..39c36b2f4 100644
--- a/src/DockerFileGenerator.php
+++ b/src/DockerFileGenerator.php
@@ -55,12 +55,12 @@ final class DockerFileGenerator
         '7.0.0' => '7-cli-alpine',
     ];
 
-    private string $image;
+    private readonly string $image;
 
     /**
      * @var string[]
      */
-    private array $extensions;
+    private readonly array $extensions;
 
     /**
      * Creates a new instance of the generator.
diff --git a/src/Json/Json.php b/src/Json/Json.php
index a49b999fd..823c0881f 100644
--- a/src/Json/Json.php
+++ b/src/Json/Json.php
@@ -28,7 +28,7 @@
 /**
  * @private
  */
-final class Json
+final readonly class Json
 {
     private JsonParser $linter;
 
diff --git a/src/Json/JsonValidationException.php b/src/Json/JsonValidationException.php
index 288837755..2e6990f6a 100644
--- a/src/Json/JsonValidationException.php
+++ b/src/Json/JsonValidationException.php
@@ -23,8 +23,8 @@
  */
 final class JsonValidationException extends UnexpectedValueException
 {
-    private ?string $validatedFile;
-    private array $errors;
+    private readonly ?string $validatedFile;
+    private readonly array $errors;
 
     /**
      * @param string[] $errors
diff --git a/src/MapFile.php b/src/MapFile.php
index 2bedefd79..bf23c7507 100644
--- a/src/MapFile.php
+++ b/src/MapFile.php
@@ -23,7 +23,7 @@
  *
  * @private
  */
-final class MapFile
+final readonly class MapFile
 {
     /**
      * @param string[][] $map
diff --git a/src/Phar/Differ/ChecksumDiffer.php b/src/Phar/Differ/ChecksumDiffer.php
index 06121135d..02c59e57e 100644
--- a/src/Phar/Differ/ChecksumDiffer.php
+++ b/src/Phar/Differ/ChecksumDiffer.php
@@ -21,7 +21,7 @@
 use function hash;
 use function implode;
 
-final class ChecksumDiffer implements Differ
+final readonly class ChecksumDiffer implements Differ
 {
     public function __construct(
         private string $checksumAlgorithm,
diff --git a/src/Phar/Differ/ProcessCommandBasedDiffer.php b/src/Phar/Differ/ProcessCommandBasedDiffer.php
index eab2442a1..ba820877b 100644
--- a/src/Phar/Differ/ProcessCommandBasedDiffer.php
+++ b/src/Phar/Differ/ProcessCommandBasedDiffer.php
@@ -18,7 +18,7 @@
 use KevinGH\Box\Phar\PharInfo;
 use Symfony\Component\Process\Process;
 
-final class ProcessCommandBasedDiffer implements Differ
+final readonly class ProcessCommandBasedDiffer implements Differ
 {
     public function __construct(private string $command)
     {
diff --git a/src/Phar/PharInfo.php b/src/Phar/PharInfo.php
index a71723cb1..2865938b9 100644
--- a/src/Phar/PharInfo.php
+++ b/src/Phar/PharInfo.php
@@ -77,16 +77,16 @@ final class PharInfo
     private static array $ALGORITHMS;
     private static string $stubfile;
 
-    private PharMeta $meta;
-    private string $tmp;
-    private string $file;
-    private string $fileName;
+    private readonly PharMeta $meta;
+    private readonly string $tmp;
+    private readonly string $file;
+    private readonly string $fileName;
     private array $compressionCount;
 
     /**
      * @var array<string, SplFileInfo>
      */
-    private array $files;
+    private readonly array $files;
 
     public function __construct(string $file)
     {
diff --git a/src/Phar/PharMeta.php b/src/Phar/PharMeta.php
index af51a3a4b..7df2d7b17 100644
--- a/src/Phar/PharMeta.php
+++ b/src/Phar/PharMeta.php
@@ -36,7 +36,7 @@
  *
  * @private
  */
-final class PharMeta
+final readonly class PharMeta
 {
     /**
      * @param non-empty-string|null                                                          $stub
@@ -46,15 +46,15 @@ final class PharMeta
      * @param array<string, array{'compression': CompressionAlgorithm, compressedSize: int}> $filesMeta
      */
     public function __construct(
-        public readonly CompressionAlgorithm $compression,
+        public CompressionAlgorithm $compression,
         #[ArrayShape(['hash' => 'string', 'hash_type' => 'string'])]
-        public readonly ?array $signature,
-        public readonly ?string $stub,
-        public readonly ?string $version,
-        public readonly ?string $normalizedMetadata,
-        public readonly int $timestamp,
-        public readonly ?string $pubKeyContent,
-        public readonly array $filesMeta,
+        public ?array $signature,
+        public ?string $stub,
+        public ?string $version,
+        public ?string $normalizedMetadata,
+        public int $timestamp,
+        public ?string $pubKeyContent,
+        public array $filesMeta,
     ) {
     }
 
diff --git a/src/PhpScoper/ExcludedFilesScoper.php b/src/PhpScoper/ExcludedFilesScoper.php
index fd3c8f90c..b99f3e69a 100644
--- a/src/PhpScoper/ExcludedFilesScoper.php
+++ b/src/PhpScoper/ExcludedFilesScoper.php
@@ -21,10 +21,10 @@
 
 final class ExcludedFilesScoper implements PhpScoperScoper
 {
-    private array $excludedFilePathsAsKeys;
+    private readonly array $excludedFilePathsAsKeys;
 
     public function __construct(
-        private PhpScoperScoper $decoratedScoper,
+        private readonly PhpScoperScoper $decoratedScoper,
         string ...$excludedFilePaths,
     ) {
         $this->excludedFilePathsAsKeys = array_flip($excludedFilePaths);
diff --git a/src/PhpScoper/SerializablePatcher.php b/src/PhpScoper/SerializablePatcher.php
index 14f51d7c0..c436b3b61 100644
--- a/src/PhpScoper/SerializablePatcher.php
+++ b/src/PhpScoper/SerializablePatcher.php
@@ -22,7 +22,7 @@
 /**
  * @var PatcherCallable = (string $filePath, string $prefix, string $contents): string
  */
-final class SerializablePatcher implements Patcher
+final readonly class SerializablePatcher implements Patcher
 {
     public static function create(callable $patcher): self
     {
diff --git a/src/PhpScoper/SerializableScoper.php b/src/PhpScoper/SerializableScoper.php
index 152c00e87..d9b845a0d 100644
--- a/src/PhpScoper/SerializableScoper.php
+++ b/src/PhpScoper/SerializableScoper.php
@@ -25,7 +25,7 @@
  */
 final class SerializableScoper implements Scoper
 {
-    private PhpScoperConfiguration $scoperConfig;
+    private readonly PhpScoperConfiguration $scoperConfig;
     private PhpScoperContainer $scoperContainer;
     private PhpScoperScoper $scoper;
     private SymbolsRegistry $symbolsRegistry;
diff --git a/src/RequirementChecker/DecodedComposerJson.php b/src/RequirementChecker/DecodedComposerJson.php
index 01e0fb953..326882a9b 100644
--- a/src/RequirementChecker/DecodedComposerJson.php
+++ b/src/RequirementChecker/DecodedComposerJson.php
@@ -19,12 +19,12 @@
 /**
  * @private
  */
-final class DecodedComposerJson
+final readonly class DecodedComposerJson
 {
     /**
      * @param array $composerJsonDecodedContents Decoded JSON contents of the `composer.json` file
      */
-    public function __construct(private readonly array $composerJsonDecodedContents)
+    public function __construct(private array $composerJsonDecodedContents)
     {
     }
 
diff --git a/src/RequirementChecker/DecodedComposerLock.php b/src/RequirementChecker/DecodedComposerLock.php
index ba5d7f473..651b64527 100644
--- a/src/RequirementChecker/DecodedComposerLock.php
+++ b/src/RequirementChecker/DecodedComposerLock.php
@@ -19,12 +19,12 @@
 /**
  * @private
  */
-final class DecodedComposerLock
+final readonly class DecodedComposerLock
 {
     /**
      * @param array $composerLockDecodedContents Decoded JSON contents of the `composer.lock` file
      */
-    public function __construct(private readonly array $composerLockDecodedContents)
+    public function __construct(private array $composerLockDecodedContents)
     {
     }
 
diff --git a/src/RequirementChecker/PackageInfo.php b/src/RequirementChecker/PackageInfo.php
index 3ff05aa25..5f4fbf8ad 100644
--- a/src/RequirementChecker/PackageInfo.php
+++ b/src/RequirementChecker/PackageInfo.php
@@ -19,7 +19,7 @@
 /**
  * @private
  */
-final class PackageInfo
+final readonly class PackageInfo
 {
     private const EXTENSION_REGEX = '/^ext-(?<extension>.+)$/';
 
@@ -37,7 +37,7 @@ final class PackageInfo
 
     private const SYMFONY_POLYFILL_REGEX = '/symfony\/polyfill-(?<extension>.+)/';
 
-    public function __construct(private readonly array $packageInfo)
+    public function __construct(private array $packageInfo)
     {
     }
 
diff --git a/src/RequirementChecker/RequiredItem.php b/src/RequirementChecker/RequiredItem.php
index 5bd38e19e..9036d426b 100644
--- a/src/RequirementChecker/RequiredItem.php
+++ b/src/RequirementChecker/RequiredItem.php
@@ -20,7 +20,7 @@
 /**
  * @private
  */
-final class RequiredItem
+final readonly class RequiredItem
 {
     private const POLYFILL_MAP = [
         'paragonie/sodium_compat' => 'libsodium',
@@ -32,7 +32,7 @@ final class RequiredItem
     /**
      * @param array<string, string> $packageInfo
      */
-    public function __construct(private readonly array $packageInfo)
+    public function __construct(private array $packageInfo)
     {
     }
 
diff --git a/src/RequirementChecker/Requirement.php b/src/RequirementChecker/Requirement.php
index 73feb9a7d..fe1d8e3ef 100644
--- a/src/RequirementChecker/Requirement.php
+++ b/src/RequirementChecker/Requirement.php
@@ -17,14 +17,14 @@
 /**
  * @private
  */
-final class Requirement
+final readonly class Requirement
 {
     public function __construct(
-        public readonly RequirementType $type,
-        public readonly string $condition,
-        public readonly ?string $source,
-        public readonly string $message,
-        public readonly string $helpMessage,
+        public RequirementType $type,
+        public string $condition,
+        public ?string $source,
+        public string $message,
+        public string $helpMessage,
     ) {
     }
 
diff --git a/src/functions.php b/src/functions.php
index 1ff33245f..b2ec30a4e 100644
--- a/src/functions.php
+++ b/src/functions.php
@@ -16,8 +16,10 @@
 
 use Composer\InstalledVersions;
 use ErrorException;
+use Isolated\Symfony\Component\Finder\Finder as IsolatedFinder;
 use Phar;
 use Symfony\Component\Console\Helper\Helper;
+use Symfony\Component\Finder\Finder as SymfonyFinder;
 use Webmozart\Assert\Assert;
 use function bin2hex;
 use function class_alias;
@@ -160,8 +162,8 @@ function format_time(float $secs): string
 function register_aliases(): void
 {
     // Exposes the finder used by PHP-Scoper PHAR to allow its usage in the configuration file.
-    if (false === class_exists(\Isolated\Symfony\Component\Finder\Finder::class)) {
-        class_alias(\Symfony\Component\Finder\Finder::class, \Isolated\Symfony\Component\Finder\Finder::class);
+    if (false === class_exists(IsolatedFinder::class)) {
+        class_alias(SymfonyFinder::class, IsolatedFinder::class);
     }
 }
 
diff --git a/tests/Benchmark/BenchResultReaderTest.php b/tests/Benchmark/BenchResultReaderTest.php
index 7ef718330..6117a5ab5 100644
--- a/tests/Benchmark/BenchResultReaderTest.php
+++ b/tests/Benchmark/BenchResultReaderTest.php
@@ -220,9 +220,9 @@ public static function xmlProvider(): iterable
         yield [
             $xml,
             [
-                'no compactors' => 2638316.8,
-                'with compactors; no parallel processing' => 2612822.4,
-                'with compactors; parallel processing' => 2967538.1,
+                'no compactors' => 2_638_316.8,
+                'with compactors; no parallel processing' => 2_612_822.4,
+                'with compactors; parallel processing' => 2_967_538.1,
             ],
         ];
     }
diff --git a/tests/Benchmark/CompileBench.php b/tests/Benchmark/CompileBench.php
index 589bce627..865fd8871 100644
--- a/tests/Benchmark/CompileBench.php
+++ b/tests/Benchmark/CompileBench.php
@@ -28,7 +28,7 @@
 use Symfony\Component\Console\Output\NullOutput;
 use function Safe\chdir;
 
-final class CompileBench
+final readonly class CompileBench
 {
     private const WITHOUT_COMPACTORS_DIR = __DIR__.'/../../fixtures/bench/without-compactors';
     private const WITH_COMPACTORS_DIR = __DIR__.'/../../fixtures/bench/with-compactors';
diff --git a/tests/Console/Command/ExtractTest.php b/tests/Console/Command/ExtractTest.php
index cd7aa24af..b86d3c659 100644
--- a/tests/Console/Command/ExtractTest.php
+++ b/tests/Console/Command/ExtractTest.php
@@ -84,7 +84,7 @@ private static function pharProvider(): iterable
             $oldDefaultPharStub,
             '1.1.0',
             null,
-            1559806605,
+            1_559_806_605,
             null,
             [
                 '.hidden' => [
@@ -131,7 +131,7 @@ private static function pharProvider(): iterable
                         $oldDefaultPharStub,
                         '1.1.0',
                         null,
-                        1559807994,
+                        1_559_807_994,
                         null,
                         [
                             '.hidden' => [
@@ -160,7 +160,7 @@ private static function pharProvider(): iterable
                     $sha512Stub,
                     '1.1.0',
                     null,
-                    1374531272,
+                    1_374_531_272,
                     null,
                     [
                         'index.php' => [
@@ -189,7 +189,7 @@ private static function pharProvider(): iterable
                     $sha512Stub,
                     '1.1.0',
                     null,
-                    1374531313,
+                    1_374_531_313,
                     <<<'EOF'
                         -----BEGIN PUBLIC KEY-----
                         MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAKuZkrHT54KtuBCTrR36+4tibd+2un9b
@@ -324,7 +324,7 @@ public function test_it_cannot_extract_an_invalid_phar(string $pharPath): void
             );
 
             self::assertSame(ExitCode::FAILURE, $this->commandTester->getStatusCode());
-        } catch (InvalidPhar $exception) {
+        } catch (InvalidPhar) {
             // Continue
         }
 
diff --git a/tests/Phar/PharMetaTest.php b/tests/Phar/PharMetaTest.php
index 7dde21c9a..8396776c8 100644
--- a/tests/Phar/PharMetaTest.php
+++ b/tests/Phar/PharMetaTest.php
@@ -47,7 +47,7 @@ public static function pharMetaProvider(): iterable
                 null,
                 null,
                 null,
-                1509920675,
+                1_509_920_675,
                 null,
                 [],
             ),
@@ -64,7 +64,7 @@ public static function pharMetaProvider(): iterable
                        'action' => 'sayHello',
                     )
                     EOL,
-                1509920675,
+                1_509_920_675,
                 <<<'EOF'
                     -----BEGIN PUBLIC KEY-----
                     MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAKuZkrHT54KtuBCTrR36+4tibd+2un9b
@@ -123,7 +123,7 @@ public static function pharProvider(): iterable
                 $defaultStub,
                 '1.1.0',
                 null,
-                1680285013,
+                1_680_285_013,
                 null,
                 [
                     'sample.php' => [
@@ -146,7 +146,7 @@ public static function pharProvider(): iterable
                 $oldDefaultPharStub,
                 '1.1.0',
                 null,
-                1509920675,
+                1_509_920_675,
                 null,
                 [
                     'foo.php' => [
@@ -169,7 +169,7 @@ public static function pharProvider(): iterable
                 $defaultStub,
                 '1.1.0',
                 null,
-                1680680933,
+                1_680_680_933,
                 null,
                 [
                     'sample.php' => [
@@ -197,7 +197,7 @@ public static function pharProvider(): iterable
                     $defaultStub,
                     '1.1.0',
                     null,
-                    1680469485,
+                    1_680_469_485,
                     null,
                     [
                         'sample.php' => [
@@ -222,7 +222,7 @@ public static function pharProvider(): iterable
                     $defaultStub,
                     '1.1.0',
                     null,
-                    1680469504,
+                    1_680_469_504,
                     null,
                     [
                         'sample.php' => [
@@ -246,7 +246,7 @@ public static function pharProvider(): iterable
                 $sha512Stub,
                 '1.1.0',
                 null,
-                1374531272,
+                1_374_531_272,
                 null,
                 [
                     'index.php' => [
@@ -269,7 +269,7 @@ public static function pharProvider(): iterable
                 $sha512Stub,
                 '1.1.0',
                 null,
-                1374531313,
+                1_374_531_313,
                 <<<'EOF'
                     -----BEGIN PUBLIC KEY-----
                     MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAKuZkrHT54KtuBCTrR36+4tibd+2un9b
@@ -298,7 +298,7 @@ public static function pharProvider(): iterable
                 $defaultStub,
                 '1.1.0',
                 "'Hello world!'",
-                1680366918,
+                1_680_366_918,
                 null,
                 [
                     'sample.php' => [
@@ -321,7 +321,7 @@ public static function pharProvider(): iterable
                 $defaultStub,
                 '1.1.0',
                 '-19.8',
-                1680366947,
+                1_680_366_947,
                 null,
                 [
                     'sample.php' => [
@@ -348,7 +348,7 @@ public static function pharProvider(): iterable
                        'action' => 'sayHello',
                     )
                     EOL,
-                1680367053,
+                1_680_367_053,
                 null,
                 [
                     'sample.php' => [
@@ -368,7 +368,7 @@ public static function pharProvider(): iterable
                 null,
                 null,
                 null,
-                1680284754,
+                1_680_284_754,
                 null,
                 [
                     'sample.txt' => [
@@ -389,7 +389,7 @@ public static function pharProvider(): iterable
                     null,
                     null,
                     null,
-                    1680284663,
+                    1_680_284_663,
                     null,
                     [
                         'sample.txt' => [
@@ -411,7 +411,7 @@ public static function pharProvider(): iterable
                     null,
                     null,
                     null,
-                    1680284660,
+                    1_680_284_660,
                     null,
                     [
                         'sample.txt' => [
@@ -433,7 +433,7 @@ public static function pharProvider(): iterable
                     null,
                     null,
                     null,
-                    1680284663,
+                    1_680_284_663,
                     null,
                     [
                         'sample.txt' => [
@@ -457,7 +457,7 @@ public static function pharProvider(): iterable
                 $defaultStub,
                 '1.1.0',
                 null,
-                1680645848,
+                1_680_645_848,
                 null,
                 [
                     '.hidden-dir/.hidden-file' => [
diff --git a/vendor-bin/rector/composer.json b/vendor-bin/rector/composer.json
index 80a436601..e829b1ed6 100644
--- a/vendor-bin/rector/composer.json
+++ b/vendor-bin/rector/composer.json
@@ -1,5 +1,5 @@
 {
     "require-dev": {
-        "rector/rector": "^0.14"
+        "rector/rector": ">=0.14"
     }
 }