diff --git a/tests/Admin/AdminTest.php b/tests/Admin/AdminTest.php
index 2151c47..0883c99 100755
--- a/tests/Admin/AdminTest.php
+++ b/tests/Admin/AdminTest.php
@@ -17,7 +17,7 @@ namespace Modules\ItemManagement\tests\Admin;
 /**
  * @internal
  */
-class AdminTest extends \PHPUnit\Framework\TestCase
+final class AdminTest extends \PHPUnit\Framework\TestCase
 {
     protected const NAME = 'ItemManagement';
 
diff --git a/tests/Models/ItemMapperTest.php b/tests/Models/ItemMapperTest.php
index 9ff568e..44e72fc 100755
--- a/tests/Models/ItemMapperTest.php
+++ b/tests/Models/ItemMapperTest.php
@@ -20,7 +20,7 @@ use Modules\ItemManagement\Models\ItemMapper;
 /**
  * @internal
  */
-class ItemMapperTest extends \PHPUnit\Framework\TestCase
+final class ItemMapperTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @covers Modules\ItemManagement\Models\ItemMapper