diff --git a/src/Entity/AbstractEntity.php b/src/Entity/AbstractEntity.php
index fca136c..acb4e86 100644
--- a/src/Entity/AbstractEntity.php
+++ b/src/Entity/AbstractEntity.php
@@ -5,7 +5,7 @@ namespace Rmphp\Storage\Entity;
 abstract class AbstractEntity implements EntityInterface {
 
 	/**
-	 * @return int|null
+	 * @return mixed
 	 */
 	public function getId(): mixed {
 		return (isset($this->id)) ? (($this->id instanceof ValueObjectInterface) ? $this->id->get() : $this->id) : null;
diff --git a/src/Entity/EntityInterface.php b/src/Entity/EntityInterface.php
index 6639e60..715c7d0 100644
--- a/src/Entity/EntityInterface.php
+++ b/src/Entity/EntityInterface.php
@@ -11,7 +11,7 @@ namespace Rmphp\Storage\Entity;
 interface EntityInterface {
 
 	/**
-	 * @return int|null
+	 * @return mixed
 	 */
 	public function getId(): mixed;