diff --git a/tests/Admin/AdminTest.php b/tests/Admin/AdminTest.php
index eddc2bf..303ed5b 100755
--- a/tests/Admin/AdminTest.php
+++ b/tests/Admin/AdminTest.php
@@ -17,7 +17,7 @@ namespace Modules\ClientManagement\tests\Admin;
 /**
  * @internal
  */
-class AdminTest extends \PHPUnit\Framework\TestCase
+final class AdminTest extends \PHPUnit\Framework\TestCase
 {
     protected const NAME = 'ClientManagement';
 
diff --git a/tests/Models/ClientMapperTest.php b/tests/Models/ClientMapperTest.php
index e14add4..1c23127 100755
--- a/tests/Models/ClientMapperTest.php
+++ b/tests/Models/ClientMapperTest.php
@@ -24,7 +24,7 @@ use Modules\Profile\Models\ProfileMapper;
 /**
  * @internal
  */
-class ClientMapperTest extends \PHPUnit\Framework\TestCase
+final class ClientMapperTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @covers Modules\ClientManagement\Models\ClientMapper