diff --git a/tests/Models/TaskElementTest.php b/tests/Models/TaskElementTest.php
index df5cad0..d9f2f7f 100644
--- a/tests/Models/TaskElementTest.php
+++ b/tests/Models/TaskElementTest.php
@@ -91,7 +91,7 @@ class TaskElementTest extends \PHPUnit\Framework\TestCase
 
     public function testInvalidStatus() : void
     {
-        self::expectException(\phpOMS\Stdlib\Base\Exception\InvalidEnumValue::class);
+        $this->expectException(\phpOMS\Stdlib\Base\Exception\InvalidEnumValue::class);
 
         $task = new TaskElement();
         $task->setStatus(9999);
@@ -99,7 +99,7 @@ class TaskElementTest extends \PHPUnit\Framework\TestCase
 
     public function testInvalidPriority() : void
     {
-        self::expectException(\phpOMS\Stdlib\Base\Exception\InvalidEnumValue::class);
+        $this->expectException(\phpOMS\Stdlib\Base\Exception\InvalidEnumValue::class);
 
         $task = new TaskElement();
         $task->setPriority(9999);
diff --git a/tests/Models/TaskTest.php b/tests/Models/TaskTest.php
index df4b7d7..fc47b99 100644
--- a/tests/Models/TaskTest.php
+++ b/tests/Models/TaskTest.php
@@ -163,7 +163,7 @@ class TaskTest extends \PHPUnit\Framework\TestCase
 
     public function testInvalidStatus() : void
     {
-        self::expectException(\phpOMS\Stdlib\Base\Exception\InvalidEnumValue::class);
+        $this->expectException(\phpOMS\Stdlib\Base\Exception\InvalidEnumValue::class);
 
         $task = new Task();
         $task->setStatus(9999);
@@ -171,7 +171,7 @@ class TaskTest extends \PHPUnit\Framework\TestCase
 
     public function testInvalidPriority() : void
     {
-        self::expectException(\phpOMS\Stdlib\Base\Exception\InvalidEnumValue::class);
+        $this->expectException(\phpOMS\Stdlib\Base\Exception\InvalidEnumValue::class);
 
         $task = new Task();
         $task->setPriority(9999);