diff --git a/EventListener/PrepareUserListener.php b/EventListener/PrepareUserListener.php
index 94048f87..9f2b097b 100644
--- a/EventListener/PrepareUserListener.php
+++ b/EventListener/PrepareUserListener.php
@@ -55,7 +55,7 @@ public function prepareAndDispatchUserCreated(FormEvent $event): void
 
         $entity->setEnabled(false);
         $entity->enforcePasswordChange(true);
-        $entity->setPlainPassword(random_bytes(32));
+        $entity->setPlainPassword(bin2hex(random_bytes(32)));
 
         $this->eventDispatcher->dispatch(
             AdminSecurityEvents::USER_CREATED,