diff --git a/Classes/Hooks/TypoLinkHandler.php b/Classes/EventListener/TypoLinkEventListener.php
similarity index 63%
rename from Classes/Hooks/TypoLinkHandler.php
rename to Classes/EventListener/TypoLinkEventListener.php
index 69c3ea1..e64e66e 100644
--- a/Classes/Hooks/TypoLinkHandler.php
+++ b/Classes/EventListener/TypoLinkEventListener.php
@@ -1,6 +1,8 @@
 <?php
-namespace B13\Snipper\Hooks;
 
+declare(strict_types=1);
+
+namespace B13\Snipper\EventListener;
 
 /***************************************************************
  *  Copyright notice - MIT License (MIT)
@@ -28,23 +30,28 @@
  *  THE SOFTWARE.
  ***************************************************************/
 
+use TYPO3\CMS\Core\Attribute\AsEventListener;
+use TYPO3\CMS\Frontend\Event\AfterLinkIsGeneratedEvent;
 
-
-use TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer;
-
-/**
- * Class TypoLinkHandler
- *
- */
-class TypoLinkHandler
+#[AsEventListener]
+final class TypoLinkEventListener
 {
-    public function postProcessTypoLink(&$parameters, ContentObjectRenderer &$parentObject)
+    public function __invoke(AfterLinkIsGeneratedEvent  $event): void
     {
-        if ($parameters['tagAttributes']['target'] === '_blank' && !$parameters['tagAttributes']['rel']) {
-            $parameters['tagAttributes']['rel'] = 'noopener';
-            $parameters['finalTagParts']['aTagParams'] .= ' rel="noopener"';
-            $parameters['conf']['ATagParams'] .= ' rel="noopener"';
-            $parameters['finalTag'] = str_replace('target="_blank"', 'target="_blank" rel="noopener"', $parameters['finalTag']);
+        $attributes = $event->getLinkResult()->getAttributes();
+        if (
+            isset($attributes['target'])
+            && $attributes['target'] === '_blank'
+        ) {
+            $rel = 'noopener';
+            if (isset($attributes['rel'])) {
+                $rel = $attributes['rel'] . ' ' . $rel;
+            }
+            $linkResult = $event->getLinkResult()->withAttribute(
+                'rel',
+                $rel,
+            );
+            $event->setLinkResult($linkResult);
         }
     }
 }
diff --git a/Configuration/Services.yaml b/Configuration/Services.yaml
new file mode 100644
index 0000000..84cd1f1
--- /dev/null
+++ b/Configuration/Services.yaml
@@ -0,0 +1,8 @@
+services:
+  _defaults:
+    autowire: true
+    autoconfigure: true
+    public: false
+
+  B13\Snipper\:
+    resource: '../Classes/*'
diff --git a/composer.json b/composer.json
index 96fcd59..c64ac8e 100644
--- a/composer.json
+++ b/composer.json
@@ -4,6 +4,7 @@
 	"description": "Keep external links secure by adding rel=\"noopener\" to all external typolinks.",
 	"license": "GPL-2.0-or-later",
 	"require": {
+		"typo3/cms-backend": "^12.4 || ^13.4 || ^14.0"
 	},
 	"extra": {
 		"typo3/cms": {
diff --git a/ext_emconf.php b/ext_emconf.php
index d1b6937..ffa0e50 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -13,7 +13,7 @@
     'constraints' => [
         'depends' =>
             [
-                'typo3' => '9.5.0-10.99.99',
+                'typo3' => '12.4.0-14.99.99',
             ],
     ],
 ];
diff --git a/ext_localconf.php b/ext_localconf.php
deleted file mode 100644
index b24993b..0000000
--- a/ext_localconf.php
+++ /dev/null
@@ -1,6 +0,0 @@
-<?php
-if (!defined('TYPO3_MODE')) {
-    die('Access denied.');
-}
-
-$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['tslib/class.tslib_content.php']['typoLink_PostProc'][] = \B13\Snipper\Hooks\TypoLinkHandler::class . '->postProcessTypoLink';