diff --git a/Classes/Command/MigrateFieldsCommand.php b/Classes/Command/MigrateFieldsCommand.php
index 9810657..3d545f3 100644
--- a/Classes/Command/MigrateFieldsCommand.php
+++ b/Classes/Command/MigrateFieldsCommand.php
@@ -46,28 +46,26 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         if ($this->doesRealurlFieldExist($conn)) {
             $queryBuilder = $conn->createQueryBuilder();
             $queryBuilder->getRestrictions()->removeAll();
-            $existingRows = $queryBuilder
+            $existingPages = $queryBuilder
                 ->select('uid')
                 ->from('pages')
                 ->where(
                     $queryBuilder->expr()->eq('tx_realurl_exclude', $queryBuilder->createNamedParameter(1, Connection::PARAM_INT))
                 )
-                ->execute()
-                ->fetchAll();
+                ->executeQuery()
+                ->fetchFirstColumn();
 
-            if (count($existingRows) === 0) {
+            if (count($existingPages) === 0) {
                 $io->success('Nothing done, as there is no row to update.');
                 return 0;
             }
 
-            $existingPages = array_column($existingRows, 'uid');
-
             $updateQueryBuilder = $conn->createQueryBuilder();
             $affectedRows = $updateQueryBuilder
                 ->update('pages')
                 ->set('exclude_slug_for_subpages', 1)
                 ->where(
-                    $queryBuilder->expr()->orX(
+                    $queryBuilder->expr()->or(
                         $queryBuilder->expr()->in(
                             'uid',
                             // do not use named parameter here as the list can get too long
@@ -79,7 +77,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
                         )
                     )
                 )
-                ->execute();
+                ->executeQuery();
 
             $io->success('Migrated ' . $affectedRows . ' pages (incl. translations)');
         } else {
@@ -96,7 +94,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
      */
     protected function doesRealurlFieldExist(Connection $conn): bool
     {
-        $columns = $conn->getSchemaManager()->listTableColumns('pages');
+        $columns = $conn->getSchemaInformation()->introspectTable('pages')->getColumns();
         foreach ($columns as $column) {
             if (strtolower($column->getName()) === 'tx_realurl_exclude') {
                 return true;
diff --git a/Classes/SlugModifier.php b/Classes/SlugModifier.php
index 65f5916..97e29e5 100644
--- a/Classes/SlugModifier.php
+++ b/Classes/SlugModifier.php
@@ -15,7 +15,6 @@
 use TYPO3\CMS\Core\Database\Connection;
 use TYPO3\CMS\Core\Database\ConnectionPool;
 use TYPO3\CMS\Core\DataHandling\SlugHelper;
-use TYPO3\CMS\Core\Information\Typo3Version;
 use TYPO3\CMS\Core\TypoScript\TypoScriptService;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 
@@ -81,17 +80,13 @@ protected function resolveHookParameters(array $configuration, string $tableName
         if (isset($record['uid'])) {
             // load full record from db (else: it is a new record)
             $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable('pages');
-            $stm = $queryBuilder->select('*')
+            $row = $queryBuilder->select('*')
                 ->from('pages')
                 ->where(
                     $queryBuilder->expr()->eq('uid', $queryBuilder->createNamedParameter($record['uid'], Connection::PARAM_INT))
                 )
-                ->execute();
-            if ((GeneralUtility::makeInstance(Typo3Version::class))->getMajorVersion() === 10) {
-                $row = $stm->fetch();
-            } else {
-                $row = $stm->fetchAssociative();
-            }
+                ->executeQuery()
+                ->fetchAssociative();
             if ($row !== false) {
                 $this->recordData = array_replace($row, $record);
             }
@@ -162,7 +157,7 @@ protected function regenerateSlug(SlugHelper $helper): string
             $slug = $prefix . $slug;
         }
 
-        return (string)$helper->sanitize($slug);
+        return $helper->sanitize($slug);
     }
 
     /**
diff --git a/Classes/Updates/MigrateRealUrlExcludeField.php b/Classes/Updates/MigrateRealUrlExcludeField.php
index be12a37..3ea5302 100644
--- a/Classes/Updates/MigrateRealUrlExcludeField.php
+++ b/Classes/Updates/MigrateRealUrlExcludeField.php
@@ -15,6 +15,7 @@
 use TYPO3\CMS\Core\Database\Connection;
 use TYPO3\CMS\Core\Database\ConnectionPool;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Install\Attribute\UpgradeWizard;
 use TYPO3\CMS\Install\Updates\DatabaseUpdatedPrerequisite;
 use TYPO3\CMS\Install\Updates\UpgradeWizardInterface;
 
@@ -22,6 +23,7 @@
  * Command for migrating fields from "pages.tx_realurl_exclude"
  * into "pages.exclude_slug_for_subpages".
  */
+#[UpgradeWizard('masiMigrateRealUrlExclude')]
 class MigrateRealUrlExcludeField implements UpgradeWizardInterface
 {
     public function getIdentifier(): string
@@ -44,7 +46,7 @@ protected function getExistingExcludedPages(): array
         $conn = GeneralUtility::makeInstance(ConnectionPool::class)->getConnectionForTable('pages');
         $queryBuilder = $conn->createQueryBuilder();
         $queryBuilder->getRestrictions()->removeAll();
-        $existingRows = $queryBuilder
+        $excludedPages = $queryBuilder
             ->select('uid')
             ->from('pages')
             ->where(
@@ -53,11 +55,10 @@ protected function getExistingExcludedPages(): array
                     $queryBuilder->createNamedParameter(1, Connection::PARAM_INT)
                 )
             )
-            ->execute()
-            ->fetchAll();
+            ->executeQuery()
+            ->fetchFirstColumn();
         
-        return array_column($existingRows, 'uid'); 
-
+        return $excludedPages;
     }
     
     public function executeUpdate(): bool
@@ -82,7 +83,7 @@ public function executeUpdate(): bool
                     array_merge($existingPages, [0])
                 )
             )
-            ->execute();
+            ->executeQuery();
 
         return true;
     }
@@ -90,7 +91,7 @@ public function executeUpdate(): bool
     protected function doesRealurlFieldExist(): bool
     {
         $conn = GeneralUtility::makeInstance(ConnectionPool::class)->getConnectionForTable('pages');
-        $columns = $conn->getSchemaManager()->listTableColumns('pages');
+        $columns = $conn->getSchemaInformation()->introspectTable('pages')->getColumns();
         foreach ($columns as $column) {
             if (strtolower($column->getName()) === 'tx_realurl_exclude') {
                 return true;
diff --git a/composer.json b/composer.json
index a60005f..01f9abf 100644
--- a/composer.json
+++ b/composer.json
@@ -13,8 +13,8 @@
   "homepage": "https://github.com/b13/masi",
   "license": ["GPL-2.0-or-later"],
   "require": {
-    "php": "^7.4 || ~8.0",
-    "typo3/cms-core": "^10.4 || ^11.5 || ^12.0"
+    "php": "^8.1",
+    "typo3/cms-core": "^12.4 || ^13.0"
   },
   "replace": {
     "typo3-ter/masi": "self.version"
diff --git a/ext_emconf.php b/ext_emconf.php
index 7ba9450..ec9ef4d 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -11,7 +11,7 @@
     'version' => '2.0.3',
     'constraints' => [
         'depends' => [
-            'typo3' => '10.4.0-12.99.99',
+            'typo3' => '12.4.0-13.4.99',
         ],
     ],
 ];
diff --git a/ext_localconf.php b/ext_localconf.php
deleted file mode 100644
index 08005cb..0000000
--- a/ext_localconf.php
+++ /dev/null
@@ -1,9 +0,0 @@
-<?php
-
-defined('TYPO3') or die();
-
-/**
- * Registering Upgrade Wizards
- */
-$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/install']['update']['masiMigrateRealUrlExclude']
-    = \B13\Masi\Updates\MigrateRealUrlExcludeField::class;