diff --git a/tests/FunctionalTestCase.php b/tests/FunctionalTestCase.php
index <HASH>..<HASH> 100644
--- a/tests/FunctionalTestCase.php
+++ b/tests/FunctionalTestCase.php
@@ -28,7 +28,7 @@ class FunctionalTestCase extends \Orchestra\Testbench\TestCase
     /**
      * {@inheritdoc}
      */
-    public function setUp()
+    public function setUp(): void
     {
         parent::setUp();
fix: FunctionalTestCase