diff --git a/Models/InvoiceStatus.php b/Models/InvoiceStatus.php
index 0485452..15310b5 100644
--- a/Models/InvoiceStatus.php
+++ b/Models/InvoiceStatus.php
@@ -14,7 +14,7 @@
 declare(strict_types=1);
 namespace Modules\Billing\Models;
 
-use phpOMS\Datatypes\Enum;
+use phpOMS\Stdlib\Base\Enum;
 
 /**
  * Task type enum.
diff --git a/Models/InvoiceType.php b/Models/InvoiceType.php
index ef0a491..5e2204e 100644
--- a/Models/InvoiceType.php
+++ b/Models/InvoiceType.php
@@ -14,7 +14,7 @@
 declare(strict_types=1);
 namespace Modules\Billing\Models;
 
-use phpOMS\Datatypes\Enum;
+use phpOMS\Stdlib\Base\Enum;
 
 /**
  * Task type enum.