diff --git a/Models/Department.php b/Models/Department.php
index 2105f2d..1be8362 100755
--- a/Models/Department.php
+++ b/Models/Department.php
@@ -94,18 +94,6 @@ class Department implements \JsonSerializable
         $this->unit   = new NullUnit();
     }
 
-    /**
-     * Get id
-     *
-     * @return int
-     *
-     * @since 1.0.0
-     */
-    public function getId() : int
-    {
-        return $this->id;
-    }
-
     /**
      * Get status
      *
diff --git a/Models/Position.php b/Models/Position.php
index 776aa53..70b4528 100755
--- a/Models/Position.php
+++ b/Models/Position.php
@@ -91,18 +91,6 @@ class Position implements \JsonSerializable
         $this->department = new NullDepartment();
     }
 
-    /**
-     * Get id
-     *
-     * @return int
-     *
-     * @since 1.0.0
-     */
-    public function getId() : int
-    {
-        return $this->id;
-    }
-
     /**
      * Get status
      *
diff --git a/Models/Unit.php b/Models/Unit.php
index 883a170..6ca042e 100755
--- a/Models/Unit.php
+++ b/Models/Unit.php
@@ -101,18 +101,6 @@ class Unit implements \JsonSerializable
         $this->mainAddress = new NullAddress();
     }
 
-    /**
-     * Get id
-     *
-     * @return int
-     *
-     * @since 1.0.0
-     */
-    public function getId() : int
-    {
-        return $this->id;
-    }
-
     /**
      * Get status
      *