diff --git a/Tests/Transport/PostmarkTransportFactoryTest.php b/Tests/Transport/PostmarkTransportFactoryTest.php
index 33a6b66..6394941 100644
--- a/Tests/Transport/PostmarkTransportFactoryTest.php
+++ b/Tests/Transport/PostmarkTransportFactoryTest.php
@@ -16,12 +16,15 @@
 use Symfony\Component\Mailer\Bridge\Postmark\Transport\PostmarkApiTransport;
 use Symfony\Component\Mailer\Bridge\Postmark\Transport\PostmarkSmtpTransport;
 use Symfony\Component\Mailer\Bridge\Postmark\Transport\PostmarkTransportFactory;
-use Symfony\Component\Mailer\Test\TransportFactoryTestCase;
+use Symfony\Component\Mailer\Test\AbstractTransportFactoryTestCase;
+use Symfony\Component\Mailer\Test\IncompleteDsnTestTrait;
 use Symfony\Component\Mailer\Transport\Dsn;
 use Symfony\Component\Mailer\Transport\TransportFactoryInterface;
 
-class PostmarkTransportFactoryTest extends TransportFactoryTestCase
+class PostmarkTransportFactoryTest extends AbstractTransportFactoryTestCase
 {
+    use IncompleteDsnTestTrait;
+
     public function getFactory(): TransportFactoryInterface
     {
         return new PostmarkTransportFactory(null, new MockHttpClient(), new NullLogger());
diff --git a/composer.json b/composer.json
index ee80478..0451fec 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
     "require": {
         "php": ">=8.2",
         "psr/event-dispatcher": "^1",
-        "symfony/mailer": "^6.4|^7.0"
+        "symfony/mailer": "^7.2"
     },
     "require-dev": {
         "symfony/http-client": "^6.4|^7.0",