diff --git a/app/Http/Controllers/Api/InvoiceController.php b/app/Http/Controllers/Api/InvoiceController.php
index a70cef3..fc763de 100644
--- a/app/Http/Controllers/Api/InvoiceController.php
+++ b/app/Http/Controllers/Api/InvoiceController.php
@@ -72,6 +72,9 @@ class InvoiceController extends Controller
             'customer_id' => 'required|integer|exists:customers,id',
             'address_id' => 'required|integer|exists:addresses,id',
             'delivery_id' => 'nullable|integer|exists:addresses,id',
+            'project_id' => 'nullable|integer|exists:projects,id',
+            'currency_code' => 'required|string',
+            'type' => [Rule::enum(InvoiceTypeCode::class)],
             'tax' => 'required|numeric',
             'sum' => 'required|numeric',
             'due_date' => 'required|date',