diff --git a/appinfo/info.xml b/appinfo/info.xml
index 79b5d5b..ae76966 100644
--- a/appinfo/info.xml
+++ b/appinfo/info.xml
@@ -1,6 +1,5 @@
 <?xml version="1.0"?>
-<info xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance"
-      xsi:noNamespaceSchemaLocation="https://apps.nextcloud.com/schema/apps/info.xsd">
+<info xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://apps.nextcloud.com/schema/apps/info.xsd">
     <id>preferred_providers</id>
     <name>Preferred Providers</name>
     <summary>Allow nextcloud to request user accounts</summary>
@@ -12,14 +11,14 @@
     <category>files</category>
     <bugs>https://github.com/nextcloud/preferred_providers</bugs>
     <dependencies>
-        <nextcloud min-version="16" max-version="18"/>
+        <nextcloud min-version="17" max-version="18"/>
     </dependencies>
     <settings>
         <admin>OCA\Preferred_Providers\Settings\Admin</admin>
-		<admin-section>OCA\Preferred_Providers\Settings\Section</admin-section>
+        <admin-section>OCA\Preferred_Providers\Settings\Section</admin-section>
     </settings>
     <background-jobs>
-		<job>OCA\Preferred_Providers\BackgroundJob\NotifyUnsetPassword</job>
-		<job>OCA\Preferred_Providers\BackgroundJob\ExpireUnverifiedAccounts</job>
+        <job>OCA\Preferred_Providers\BackgroundJob\NotifyUnsetPassword</job>
+        <job>OCA\Preferred_Providers\BackgroundJob\ExpireUnverifiedAccounts</job>
     </background-jobs>
 </info>
diff --git a/lib/AppInfo/Application.php b/lib/AppInfo/Application.php
index 97cf362..e5d89d0 100644
--- a/lib/AppInfo/Application.php
+++ b/lib/AppInfo/Application.php
@@ -2,7 +2,7 @@
 declare(strict_types=1);
 /**
  * @copyright Copyright (c) 2018 John Molakvoæ <skjnldsv@protonmail.com>
- * 
+ *
  * @author John Molakvoæ <skjnldsv@protonmail.com>
  *
  * @license GNU AGPL version 3 or any later version
@@ -33,7 +33,7 @@ class Application extends App {
 
 	/** @var string */
 	protected $appName = 'preferred_providers';
-	
+
 	public function __construct() {
 		parent::__construct($this->appName);
 	}
@@ -45,14 +45,6 @@ public function register() {
 
 	protected function registerNotifier(IServerContainer $server) {
 		$manager = $server->getNotificationManager();
-		$manager->registerNotifier(function() use ($server) {
-			return $server->query(Notifier::class);
-		}, function() use ($server) {
-			$l = $server->getL10N($this->appName);
-			return [
-				'id' => $this->appName,
-				'name' => $l->t('Simple signup'),
-			];
-		});
+		$manager->registerNotifierService(Notifier::class);
 	}
 }
diff --git a/lib/Notification/Notifier.php b/lib/Notification/Notifier.php
index 1099135..39e6927 100644
--- a/lib/Notification/Notifier.php
+++ b/lib/Notification/Notifier.php
@@ -54,13 +54,33 @@ public function __construct(string $appName,
 		$this->urlGenerator = $urlGenerator;
 	}
 
+	/**
+	 * Identifier of the notifier, only use [a-z0-9_]
+	 *
+	 * @return string
+	 * @since 17.0.0
+	 */
+	public function getID(): string {
+		return $this->appName;
+	}
+
+	/**
+	 * Human readable name describing the notifier
+	 *
+	 * @return string
+	 * @since 17.0.0
+	 */
+	public function getName(): string {
+		return $this->l10nFactory->get($this->appName)->t('Simple signup');
+	}
+
 	/**
 	 * @param INotification $notification
 	 * @param string $languageCode The code of the language that should be used to prepare the notification
 	 * @return INotification
 	 * @throws \InvalidArgumentException When the notification was not prepared by a notifier
 	 */
-	public function prepare(INotification $notification, $languageCode): INotification {
+	public function prepare(INotification $notification, string $languageCode): INotification {
 		if ($notification->getApp() !== $this->appName) {
 			throw new \InvalidArgumentException('Incorrect app');
 		}