diff --git a/Models/NullTask.php b/Models/NullTask.php
index 9c71b5f..598f0fd 100644
--- a/Models/NullTask.php
+++ b/Models/NullTask.php
@@ -22,7 +22,7 @@ namespace Modules\Tasks\Models;
  * @link       http://website.orange-management.de
  * @since      1.0.0
  */
-final class NullTask extends Task
+class NullTask extends Task
 {
 
 }
diff --git a/Models/NullTaskElement.php b/Models/NullTaskElement.php
index eb8ecb0..ee4f04a 100644
--- a/Models/NullTaskElement.php
+++ b/Models/NullTaskElement.php
@@ -22,7 +22,7 @@ namespace Modules\Tasks\Models;
  * @link       http://website.orange-management.de
  * @since      1.0.0
  */
-final class NullTaskElement extends TaskElement
+class NullTaskElement extends TaskElement
 {
 
 }
diff --git a/Models/Task.php b/Models/Task.php
index ce8d202..2933670 100644
--- a/Models/Task.php
+++ b/Models/Task.php
@@ -25,7 +25,7 @@ use phpOMS\Stdlib\Base\Exception\InvalidEnumValue;
  * @link       http://website.orange-management.de
  * @since      1.0.0
  */
-final class Task implements \JsonSerializable
+class Task implements \JsonSerializable
 {
 
     /**
diff --git a/Models/TaskElement.php b/Models/TaskElement.php
index cd0427b..745725d 100644
--- a/Models/TaskElement.php
+++ b/Models/TaskElement.php
@@ -24,7 +24,7 @@ use phpOMS\Stdlib\Base\Exception\InvalidEnumValue;
  * @link       http://website.orange-management.de
  * @since      1.0.0
  */
-final class TaskElement implements \JsonSerializable
+class TaskElement implements \JsonSerializable
 {
 
     /**
diff --git a/Models/TaskTemplate.php b/Models/TaskTemplate.php
index 6767c91..48e6aed 100644
--- a/Models/TaskTemplate.php
+++ b/Models/TaskTemplate.php
@@ -22,7 +22,7 @@ namespace Modules\Tasks\Models;
  * @link       http://website.orange-management.de
  * @since      1.0.0
  */
-final class TaskTemplate extends Task
+class TaskTemplate extends Task
 {
     /**
      * Type.