diff --git a/Models/EmployeeEducationHistory.php b/Models/EmployeeEducationHistory.php
index af0b717..052ce37 100644
--- a/Models/EmployeeEducationHistory.php
+++ b/Models/EmployeeEducationHistory.php
@@ -14,13 +14,6 @@ declare(strict_types=1);
 
 namespace Modules\HumanResourceManagement\Models;
 
-use Modules\Organization\Models\Department;
-use Modules\Organization\Models\NullDepartment;
-use Modules\Organization\Models\NullPosition;
-use Modules\Organization\Models\NullUnit;
-use Modules\Organization\Models\Position;
-use Modules\Organization\Models\Unit;
-
 use phpOMS\Contract\ArrayableInterface;
 
 /**
diff --git a/Models/EmployeeWorkHistory.php b/Models/EmployeeWorkHistory.php
index ff5fcbd..b6be8cc 100644
--- a/Models/EmployeeWorkHistory.php
+++ b/Models/EmployeeWorkHistory.php
@@ -14,13 +14,6 @@ declare(strict_types=1);
 
 namespace Modules\HumanResourceManagement\Models;
 
-use Modules\Organization\Models\Department;
-use Modules\Organization\Models\NullDepartment;
-use Modules\Organization\Models\NullPosition;
-use Modules\Organization\Models\NullUnit;
-use Modules\Organization\Models\Position;
-use Modules\Organization\Models\Unit;
-
 use phpOMS\Contract\ArrayableInterface;
 
 /**