diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 56841fd7..ecca61fc 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -45,3 +45,35 @@ jobs:
 
       - name: Tests
         run: composer test
+
+  rector:
+    name: Rector
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        php:
+          - 8.4
+      fail-fast: false
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+
+      - name: Cache PHP dependencies
+        uses: actions/cache@v4
+        with:
+          path: vendor
+          key: ${{ runner.os }}-php-${{ matrix.php }}-composer-${{ hashFiles('**/composer.json') }}
+          restore-keys: ${{ runner.os }}-php-${{ matrix.php }}-composer-
+
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-progress --no-suggest
+
+      - name: Tests
+        run: vendor/bin/rector process --dry-run
diff --git a/composer.json b/composer.json
index 81f1e205..92e59f66 100644
--- a/composer.json
+++ b/composer.json
@@ -27,7 +27,8 @@
         "brick/varexporter": "^0.3.5",
         "friendsofphp/php-cs-fixer": "^3.2",
         "oscarotero/php-cs-fixer-config": "^2.0",
-        "phpstan/phpstan": "^1|^2"
+        "phpstan/phpstan": "^1|^2",
+        "rector/rector": "^1|^2"
     },
     "autoload": {
         "psr-4": {
@@ -45,6 +46,7 @@
             "phpcs",
             "phpstan"
         ],
-        "cs-fix": "php-cs-fixer fix"
+        "cs-fix": "php-cs-fixer fix",
+        "rector": "rector process"
     }
 }
diff --git a/rector.php b/rector.php
new file mode 100644
index 00000000..1ac454ad
--- /dev/null
+++ b/rector.php
@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\Set\ValueObject\SetList;
+
+return RectorConfig::configure()
+    ->withPaths([
+        __DIR__ . '/src',
+        __DIR__ . '/tests',
+    ])
+    ->withPhpSets()
+    ->withTypeCoverageLevel(1)
+    ->withDeadCodeLevel(2)
+    ->withCodeQualityLevel(10)
+    ->withCodingStyleLevel(0)
+;
diff --git a/src/Loader/MoLoader.php b/src/Loader/MoLoader.php
index 1e2fb68b..5fc9419e 100644
--- a/src/Loader/MoLoader.php
+++ b/src/Loader/MoLoader.php
@@ -63,7 +63,7 @@ public function loadString(string $string, ?Translations $translations = null):
                     }
 
                     $headerChunks = preg_split('/:\s*/', $headerLine, 2);
-                    $translations->getHeaders()->set($headerChunks[0], isset($headerChunks[1]) ? $headerChunks[1] : '');
+                    $translations->getHeaders()->set($headerChunks[0], $headerChunks[1] ?? '');
                 }
 
                 continue;
@@ -73,13 +73,13 @@ public function loadString(string $string, ?Translations $translations = null):
             $chunks = explode("\x04", $original, 2);
 
             if (isset($chunks[1])) {
-                list($context, $original) = $chunks;
+                [$context, $original] = $chunks;
             }
 
             $chunks = explode("\x00", $original, 2);
 
             if (isset($chunks[1])) {
-                list($original, $plural) = $chunks;
+                [$original, $plural] = $chunks;
             }
 
             $translation = $this->createTranslation($context, $original, $plural);
diff --git a/src/Loader/PoLoader.php b/src/Loader/PoLoader.php
index 6816b5b3..ca7c281e 100644
--- a/src/Loader/PoLoader.php
+++ b/src/Loader/PoLoader.php
@@ -174,7 +174,7 @@ private static function parseHeaders(?string $string): array
             // Useful for distinguishing between header definitions and possible continuations of a header entry.
             if (preg_match('/^[\w-]+:/', $line)) {
                 $pieces = array_map('trim', explode(':', $line, 2));
-                list($name, $value) = $pieces;
+                [$name, $value] = $pieces;
 
                 $headers[$name] = $value;
                 continue;
diff --git a/src/Loader/StrictPoLoader.php b/src/Loader/StrictPoLoader.php
index 6ed0d9e9..fe66c86d 100644
--- a/src/Loader/StrictPoLoader.php
+++ b/src/Loader/StrictPoLoader.php
@@ -398,7 +398,7 @@ private function readPluralTranslation(bool $throwIfNotFound = false): bool
         if (($translation = $this->translation->getTranslation()) !== null) {
             array_unshift($translations, $translation);
         }
-        if (count($translations) !== (int) $index) {
+        if (count($translations) !== $index) {
             throw new Exception("The msgstr has an invalid index{$this->getErrorPosition()}");
         }
         $data = $this->readQuotedString('msgstr');
diff --git a/src/Scanner/FunctionsHandlersTrait.php b/src/Scanner/FunctionsHandlersTrait.php
index 75e4c13a..0ace4c40 100644
--- a/src/Scanner/FunctionsHandlersTrait.php
+++ b/src/Scanner/FunctionsHandlersTrait.php
@@ -17,7 +17,7 @@ protected function gettext(ParsedFunction $function): ?Translation
         if (!$this->checkFunction($function, 1)) {
             return null;
         }
-        list($original) = $function->getArguments();
+        [$original] = $function->getArguments();
 
         $translation = $this->addComments(
             $function,
@@ -32,7 +32,7 @@ protected function ngettext(ParsedFunction $function): ?Translation
         if (!$this->checkFunction($function, 2)) {
             return null;
         }
-        list($original, $plural) = $function->getArguments();
+        [$original, $plural] = $function->getArguments();
 
         $translation = $this->addComments(
             $function,
@@ -47,7 +47,7 @@ protected function pgettext(ParsedFunction $function): ?Translation
         if (!$this->checkFunction($function, 2)) {
             return null;
         }
-        list($context, $original) = $function->getArguments();
+        [$context, $original] = $function->getArguments();
 
         $translation = $this->addComments(
             $function,
@@ -62,7 +62,7 @@ protected function dgettext(ParsedFunction $function): ?Translation
         if (!$this->checkFunction($function, 2)) {
             return null;
         }
-        list($domain, $original) = $function->getArguments();
+        [$domain, $original] = $function->getArguments();
 
         $translation = $this->addComments(
             $function,
@@ -77,7 +77,7 @@ protected function dpgettext(ParsedFunction $function): ?Translation
         if (!$this->checkFunction($function, 3)) {
             return null;
         }
-        list($domain, $context, $original) = $function->getArguments();
+        [$domain, $context, $original] = $function->getArguments();
 
         $translation = $this->addComments(
             $function,
@@ -92,7 +92,7 @@ protected function npgettext(ParsedFunction $function): ?Translation
         if (!$this->checkFunction($function, 3)) {
             return null;
         }
-        list($context, $original, $plural) = $function->getArguments();
+        [$context, $original, $plural] = $function->getArguments();
 
         $translation = $this->addComments(
             $function,
@@ -107,7 +107,7 @@ protected function dngettext(ParsedFunction $function): ?Translation
         if (!$this->checkFunction($function, 3)) {
             return null;
         }
-        list($domain, $original, $plural) = $function->getArguments();
+        [$domain, $original, $plural] = $function->getArguments();
 
         $translation = $this->addComments(
             $function,
@@ -122,7 +122,7 @@ protected function dnpgettext(ParsedFunction $function): ?Translation
         if (!$this->checkFunction($function, 4)) {
             return null;
         }
-        list($domain, $context, $original, $plural) = $function->getArguments();
+        [$domain, $context, $original, $plural] = $function->getArguments();
 
         $translation = $this->addComments(
             $function,
diff --git a/src/Scanner/ParsedFunction.php b/src/Scanner/ParsedFunction.php
index 4f4477d0..2a98c37a 100644
--- a/src/Scanner/ParsedFunction.php
+++ b/src/Scanner/ParsedFunction.php
@@ -21,7 +21,7 @@ public function __construct(string $name, string $filename, int $line, ?int $las
         $this->name = $name;
         $this->filename = $filename;
         $this->line = $line;
-        $this->lastLine = isset($lastLine) ? $lastLine : $line;
+        $this->lastLine = $lastLine ?? $line;
     }
 
     public function __debugInfo(): array