diff --git a/apps/dav/lib/CalDAV/Schedule/IMipPlugin.php b/apps/dav/lib/CalDAV/Schedule/IMipPlugin.php
index 73ccd18823311..8ed3cf4d56f71 100644
--- a/apps/dav/lib/CalDAV/Schedule/IMipPlugin.php
+++ b/apps/dav/lib/CalDAV/Schedule/IMipPlugin.php
@@ -44,7 +44,7 @@
  */
 class IMipPlugin extends SabreIMipPlugin {
 	private IUserSession $userSession;
-	private IConfig $config;
+	private IAppConfig $config;
 	private IMailer $mailer;
 	private LoggerInterface $logger;
 	private ITimeFactory $timeFactory;
@@ -59,7 +59,8 @@ class IMipPlugin extends SabreIMipPlugin {
 	private EventComparisonService $eventComparisonService;
 	private IMailManager $mailManager;
 
-	public function __construct(IConfig $config,
+	public function __construct(
+		IAppConfig $config,
 		IMailer $mailer,
 		LoggerInterface $logger,
 		ITimeFactory $timeFactory,
diff --git a/apps/dav/lib/Server.php b/apps/dav/lib/Server.php
index 3490820d526dd..180dd78c4eb7b 100644
--- a/apps/dav/lib/Server.php
+++ b/apps/dav/lib/Server.php
@@ -290,7 +290,7 @@ public function __construct(IRequest $request, string $baseUri) {
 				));
 				if (\OC::$server->getConfig()->getAppValue('dav', 'sendInvitations', 'yes') === 'yes') {
 					$this->server->addPlugin(new IMipPlugin(
-						\OC::$server->get(\OCP\IConfig::class),
+						\OC::$server->get(\OCP\IAppConfig::class),
 						\OC::$server->get(\OCP\Mail\IMailer::class),
 						\OC::$server->get(LoggerInterface::class),
 						\OC::$server->get(\OCP\AppFramework\Utility\ITimeFactory::class),