diff --git a/tests/Model/BaseModelTest.php b/tests/Model/BaseModelTest.php
index b61129a..5fa268d 100644
--- a/tests/Model/BaseModelTest.php
+++ b/tests/Model/BaseModelTest.php
@@ -11,6 +11,6 @@ declare(strict_types=1);
 
 namespace Mailgun\Tests\Model;
 
-class BaseModelTest extends \PHPUnit_Framework_TestCase
+abstract class BaseModelTest extends \PHPUnit_Framework_TestCase
 {
 }