diff --git a/app/Fileshare/Actions/FileshareStoreAction.php b/app/Fileshare/Actions/FileshareStoreAction.php
index d041ffd6..c5f1dc57 100644
--- a/app/Fileshare/Actions/FileshareStoreAction.php
+++ b/app/Fileshare/Actions/FileshareStoreAction.php
@@ -11,6 +11,9 @@ class FileshareStoreAction
 {
     use AsAction;
 
+    /**
+     * @return array<string, mixed>
+     */
     public function rules(): array
     {
         return [
@@ -20,7 +23,7 @@ class FileshareStoreAction
         ];
     }
 
-    public function asController(ActionRequest $request)
+    public function asController(ActionRequest $request): void
     {
 
         $type = $request->input('type')::from($request->input('config'));
diff --git a/app/Fileshare/Actions/IndexAction.php b/app/Fileshare/Actions/IndexAction.php
index 18eb56b5..c37d01d2 100644
--- a/app/Fileshare/Actions/IndexAction.php
+++ b/app/Fileshare/Actions/IndexAction.php
@@ -5,13 +5,14 @@ namespace App\Fileshare\Actions;
 use App\Fileshare\Models\FileshareConnection;
 use App\Fileshare\Resources\FileshareConnectionResource;
 use Inertia\Inertia;
+use Inertia\Response;
 use Lorisleiva\Actions\Concerns\AsAction;
 
 class IndexAction
 {
     use AsAction;
 
-    public function handle()
+    public function handle(): Response
     {
         session()->put('menu', 'setting');
         session()->put('title', 'Datei-Verbindungen');
diff --git a/app/Fileshare/Resources/FileshareConnectionResource.php b/app/Fileshare/Resources/FileshareConnectionResource.php
index 2d444d96..c714d757 100644
--- a/app/Fileshare/Resources/FileshareConnectionResource.php
+++ b/app/Fileshare/Resources/FileshareConnectionResource.php
@@ -2,8 +2,12 @@
 
 namespace App\Fileshare\Resources;
 
+use App\Fileshare\Models\FileshareConnection;
 use Illuminate\Http\Resources\Json\JsonResource;
 
+/**
+ * @mixin FileshareConnection
+ */
 class FileshareConnectionResource extends JsonResource
 {
     /**
diff --git a/database/factories/Fileshare/Models/FileshareConnectionFactory.php b/database/factories/Fileshare/Models/FileshareConnectionFactory.php
index 15b53628..9e48f6af 100644
--- a/database/factories/Fileshare/Models/FileshareConnectionFactory.php
+++ b/database/factories/Fileshare/Models/FileshareConnectionFactory.php
@@ -14,7 +14,7 @@ class FileshareConnectionFactory extends Factory
     /**
      * The name of the factory's corresponding model.
      *
-     * @var string
+     * @var class-string<FileshareConnection>
      */
     protected $model = FileshareConnection::class;
 
diff --git a/tests/FileshareTestCase.php b/tests/FileshareTestCase.php
index 3dd39ce2..52fa62f5 100644
--- a/tests/FileshareTestCase.php
+++ b/tests/FileshareTestCase.php
@@ -10,8 +10,8 @@ abstract class FileshareTestCase extends TestCase
 {
     use DatabaseTransactions;
 
-    protected $adminUser = 'admin';
-    protected $adminPassword = 'admin';
+    protected string $adminUser = 'admin';
+    protected string $adminPassword = 'admin';
 
     public function setUp(): void
     {
diff --git a/tests/TestCase.php b/tests/TestCase.php
index b6eab28a..f75fe0f1 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -34,7 +34,7 @@ abstract class TestCase extends BaseTestCase
         $this->initInertiaTestcase();
     }
 
-    public function loginNami(int $mglnr = 12345, string $password = 'password', int|Group $groupId = 55): self
+    public function loginNami(int $mglnr = 12345, string $password = 'password', int|Group $groupId = 55): static
     {
         Auth::success($mglnr, $password);
         $group = is_int($groupId)
@@ -57,7 +57,7 @@ abstract class TestCase extends BaseTestCase
         return $this;
     }
 
-    public function login(): self
+    public function login(): static
     {
         $this->be($user = User::factory()->create());
         $this->me = $user;