diff --git a/database/factories/Member/MemberFactory.php b/database/factories/Member/MemberFactory.php
index 033a6e48..9d272f6a 100644
--- a/database/factories/Member/MemberFactory.php
+++ b/database/factories/Member/MemberFactory.php
@@ -10,6 +10,7 @@ use App\Nationality;
 use App\Payment\Payment;
 use App\Payment\Subscription;
 use Illuminate\Database\Eloquent\Factories\Factory;
+use Illuminate\Database\Eloquent\Model;
 
 /**
  * @extends Factory<Member>
@@ -70,7 +71,7 @@ class MemberFactory extends Factory
      */
     public function withPayments(array $payments): self
     {
-        return $this->afterCreating(function (Member $model) use ($payments): void {
+        return $this->afterCreating(function (Model $model) use ($payments): mixed {
             foreach ($payments as $paymentClosure) {
                 $factory = Payment::factory()->for($model);
                 $factory = call_user_func($paymentClosure, $factory);
diff --git a/tests/TestCase.php b/tests/TestCase.php
index 2dabda3b..aadbce71 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -63,7 +63,9 @@ abstract class TestCase extends BaseTestCase
 
         return $this;
     }
-    public function assertErrors(array $errors, TestResponse $response) {
+
+    public function assertErrors(array $errors, TestResponse $response): self
+    {
         $response->assertSessionHas('errors');
         $this->assertInstanceOf(RedirectResponse::class, $response->baseResponse);
         /** @var RedirectResponse */