diff --git a/src/contracts/Notification/UserInvitation.php b/src/contracts/Notification/UserInvitation.php
index 3ece778..bf9a520 100644
--- a/src/contracts/Notification/UserInvitation.php
+++ b/src/contracts/Notification/UserInvitation.php
@@ -12,15 +12,12 @@
 use Ibexa\Contracts\User\Invitation\Invitation;
 use Symfony\Bridge\Twig\Mime\NotificationEmail;
 use Symfony\Component\Notifier\Message\EmailMessage;
-use Symfony\Component\Notifier\Message\SmsMessage;
 use Symfony\Component\Notifier\Notification\EmailNotificationInterface;
 use Symfony\Component\Notifier\Notification\Notification;
-use Symfony\Component\Notifier\Notification\SmsNotificationInterface;
 use Symfony\Component\Notifier\Recipient\EmailRecipientInterface;
-use Symfony\Component\Notifier\Recipient\SmsRecipientInterface;
 use Twig\Environment;
 
-final class UserInvitation extends Notification implements EmailNotificationInterface, SmsNotificationInterface
+final class UserInvitation extends Notification implements EmailNotificationInterface
 {
     private Invitation $invitation;
 
@@ -72,9 +69,4 @@ public function asEmailMessage(EmailRecipientInterface $recipient, string $trans
 
         return new EmailMessage($email);
     }
-
-    public function asSmsMessage(SmsRecipientInterface $recipient, string $transport = null): ?SmsMessage
-    {
-        return null;
-    }
 }
diff --git a/src/contracts/Notification/UserPasswordReset.php b/src/contracts/Notification/UserPasswordReset.php
index 7866df6..9a3f13b 100644
--- a/src/contracts/Notification/UserPasswordReset.php
+++ b/src/contracts/Notification/UserPasswordReset.php
@@ -12,15 +12,12 @@
 use Ibexa\Contracts\Core\SiteAccess\ConfigResolverInterface;
 use Symfony\Bridge\Twig\Mime\NotificationEmail;
 use Symfony\Component\Notifier\Message\EmailMessage;
-use Symfony\Component\Notifier\Message\SmsMessage;
 use Symfony\Component\Notifier\Notification\EmailNotificationInterface;
 use Symfony\Component\Notifier\Notification\Notification;
-use Symfony\Component\Notifier\Notification\SmsNotificationInterface;
 use Symfony\Component\Notifier\Recipient\EmailRecipientInterface;
-use Symfony\Component\Notifier\Recipient\SmsRecipientInterface;
 use Twig\Environment;
 
-final class UserPasswordReset extends Notification implements EmailNotificationInterface, SmsNotificationInterface, UserAwareNotificationInterface
+final class UserPasswordReset extends Notification implements EmailNotificationInterface, UserAwareNotificationInterface
 {
     private User $user;
 
@@ -66,11 +63,6 @@ public function asEmailMessage(EmailRecipientInterface $recipient, string $trans
         return new EmailMessage($email);
     }
 
-    public function asSmsMessage(SmsRecipientInterface $recipient, string $transport = null): ?SmsMessage
-    {
-        return null;
-    }
-
     public function getUser(): User
     {
         return $this->user;
diff --git a/src/contracts/Notification/UserRegister.php b/src/contracts/Notification/UserRegister.php
index 2f07fb5..fbdb5a5 100644
--- a/src/contracts/Notification/UserRegister.php
+++ b/src/contracts/Notification/UserRegister.php
@@ -10,14 +10,11 @@
 
 use Ibexa\Contracts\Core\Repository\Values\User\User;
 use Symfony\Component\Notifier\Message\EmailMessage;
-use Symfony\Component\Notifier\Message\SmsMessage;
 use Symfony\Component\Notifier\Notification\EmailNotificationInterface;
 use Symfony\Component\Notifier\Notification\Notification;
-use Symfony\Component\Notifier\Notification\SmsNotificationInterface;
 use Symfony\Component\Notifier\Recipient\EmailRecipientInterface;
-use Symfony\Component\Notifier\Recipient\SmsRecipientInterface;
 
-final class UserRegister extends Notification implements EmailNotificationInterface, SmsNotificationInterface, UserAwareNotificationInterface
+final class UserRegister extends Notification implements EmailNotificationInterface, UserAwareNotificationInterface
 {
     private User $user;
 
@@ -33,11 +30,6 @@ public function asEmailMessage(EmailRecipientInterface $recipient, string $trans
         return null;
     }
 
-    public function asSmsMessage(SmsRecipientInterface $recipient, string $transport = null): ?SmsMessage
-    {
-        return null;
-    }
-
     public function getUser(): User
     {
         return $this->user;