diff --git a/composer.json b/composer.json
index 3cb7f4f..95d3a2e 100644
--- a/composer.json
+++ b/composer.json
@@ -36,7 +36,7 @@
         "phpstan/extension-installer": "^1.4",
         "phpstan/phpstan": "1.11.10",
         "phpunit/phpunit": "^10.4",
-        "rector/rector": "1.0.1",
+        "rector/rector": "1.2.3",
         "symplify/phpstan-rules": "^13.0",
         "tomasvotruba/cognitive-complexity": "^0.2.3"
     },
diff --git a/rector.php b/rector.php
index 1611671..af17229 100644
--- a/rector.php
+++ b/rector.php
@@ -3,7 +3,6 @@
 declare(strict_types=1);
 
 use Rector\Config\RectorConfig;
-use Rector\Php74\Rector\LNumber\AddLiteralSeparatorToNumberRector;
 use Rector\PHPUnit\Set\PHPUnitSetList;
 
 return RectorConfig::configure()
@@ -28,7 +27,4 @@
     ->withSets([
         PHPUnitSetList::PHPUNIT_100,
     ])
-    ->withRootFiles()
-    ->withSkip([
-        AddLiteralSeparatorToNumberRector::class,
-    ]);
+    ->withRootFiles();