diff --git a/ApnsPHP/Message.php b/ApnsPHP/Message.php
index fb590787..799ca0bb 100644
--- a/ApnsPHP/Message.php
+++ b/ApnsPHP/Message.php
@@ -11,6 +11,7 @@
 
 use ApnsPHP\Message\Exception;
 use ApnsPHP\Message\Priority;
+use ApnsPHP\Message\PushType;
 
 /**
  * The Push Notification Message.
@@ -34,21 +35,6 @@ class Message
      */
     protected const APPLE_RESERVED_NAMESPACE = 'aps';
 
-    /**
-     * Supported push types.
-     * @var string[]
-     */
-    protected const APNS_PUSH_TYPES = [
-        'alert',
-        'background',
-        'location',
-        'voip',
-        'complication',
-        'fileprovider',
-        'mdm',
-        'liveactivity',
-    ];
-
     /**
      * If the JSON payload is longer than maximum allowed size, shorts message text.
      * @var bool|null
@@ -149,9 +135,9 @@ class Message
 
     /**
      * Push type
-     * @var 'alert'|'background'|'location'|'voip'|'complication'|'fileprovider'|'mdm'|'liveactivity'|null
+     * @var PushType|null
      */
-    private ?string $pushType = null;
+    private ?PushType $pushType = null;
 
     /**
      * Constructor.
@@ -740,23 +726,19 @@ public function getCollapseId(): string
     /**
      * Set the push type.
      *
-     * @param 'alert'|'background'|'location'|'voip'|'complication'|'fileprovider'|'mdm'|'liveactivity' $pushType
+     * @param PushType $pushType
      */
-    public function setPushType(string $pushType): void
+    public function setPushType(PushType $pushType): void
     {
-        if (!in_array($pushType, self::APNS_PUSH_TYPES)) {
-            throw new Exception('Invalid push type');
-        }
-
         $this->pushType = $pushType;
     }
 
     /**
      * Get the push type.
      *
-     * @return 'alert'|'background'|'location'|'voip'|'complication'|'fileprovider'|'mdm'|'liveactivity'|null Push type
+     * @return PushType|null Push type
      */
-    public function getPushType(): ?string
+    public function getPushType(): ?PushType
     {
         return $this->pushType;
     }
diff --git a/ApnsPHP/Message/PushType.php b/ApnsPHP/Message/PushType.php
new file mode 100644
index 00000000..ffdf3c77
--- /dev/null
+++ b/ApnsPHP/Message/PushType.php
@@ -0,0 +1,73 @@
+<?php
+
+/**
+ * APNS Push Type
+ *
+ * SPDX-FileCopyrightText: Copyright 2024 Move Agency Group B.V., Zwolle, The Netherlands
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+namespace ApnsPHP\Message;
+
+/**
+ * APNS Push Type.
+ */
+enum PushType: string
+{
+    /**
+     * The push type for notifications that trigger a user interaction — for example, an alert, badge, or sound.
+     * If you set this push type, the apns-topic header field must use your app’s bundle ID as the topic.
+     */
+    case Alert = 'alert';
+
+    /**
+     * The push type for notifications that deliver content in the background, and don’t trigger any user interactions.
+     * If you set this push type, the apns-topic header field must use your app’s bundle ID as the topic.
+     */
+    case Background = 'background';
+
+    /**
+     * The push type for notifications that request a user’s location. If you set this push type, the apns-topic header
+     * field must use your app’s bundle ID with `.location-query` appended to the end.
+     */
+    case Location = 'location';
+
+    /**
+     * The push type for notifications that provide information about an incoming Voice-over-IP (VoIP) call.
+     * If you set this push type, the apns-topic header field must use your app’s bundle ID with `.voip` appended
+     * to the end.
+     */
+    case Voip = 'voip';
+
+    /**
+     * The push type for notifications that contain update information for a watchOS app’s complications.
+     * If you set this push type, the apns-topic header field must use your app’s bundle ID with `.complication`
+     * appended to the end.
+     */
+    case Complication = 'complication';
+
+    /**
+     * The push type to signal changes to a File Provider extension. If you set this push type, the apns-topic header
+     * field must use your app’s bundle ID with `.pushkit.fileprovider` appended to the end.
+     */
+    case FileProvider = 'fileprovider';
+
+    /**
+     * The push type for notifications that tell managed devices to contact the MDM server. If you set this push type,
+     * you must use the topic from the UID attribute in the subject of your MDM push certificate.
+     */
+    case Mdm = 'mdm';
+
+    /**
+     * The push type to signal changes to a live activity session. If you set this push type, the apns-topic header
+     * field must use your app’s bundle ID with `.push-type.liveactivity` appended to the end.
+     */
+    case LiveActivity = 'liveactivity';
+
+    /**
+     * The push type for notifications that provide information about updates to your application’s push to talk
+     * services. If you set this push type, the apns-topic header field must use your app’s bundle ID with `.voip-ptt`
+     * appended to the end.
+     */
+    case PushToTalk = 'pushtotalk';
+}
diff --git a/ApnsPHP/Push.php b/ApnsPHP/Push.php
index ae538249..846d3e12 100644
--- a/ApnsPHP/Push.php
+++ b/ApnsPHP/Push.php
@@ -624,7 +624,7 @@ private function httpSend(Message $message, &$reply): bool
             $headers[] = sprintf('apns-id: %s', $message->getCustomIdentifier());
         }
         if ($message->getPushType() !== null) {
-            $headers[] = sprintf('apns-push-type: %s', $message->getPushType());
+            $headers[] = sprintf('apns-push-type: %s', $message->getPushType()->value);
         }
         if (!empty($this->providerToken)) {
             $headers[] = sprintf('Authorization: Bearer %s', $this->providerToken);
diff --git a/ApnsPHP/Tests/MessageGetTest.php b/ApnsPHP/Tests/MessageGetTest.php
index 2a769e36..5a3f0fd6 100644
--- a/ApnsPHP/Tests/MessageGetTest.php
+++ b/ApnsPHP/Tests/MessageGetTest.php
@@ -10,6 +10,7 @@
 namespace ApnsPHP\Tests;
 
 use ApnsPHP\Message\Priority;
+use ApnsPHP\Message\PushType;
 
 /**
  * This class contains tests for the getter functions
@@ -207,11 +208,11 @@ public function testGetPriority(): void
      */
     public function testGetPushType(): void
     {
-        $this->set_reflection_property_value('pushType', 'alert');
+        $this->set_reflection_property_value('pushType', PushType::Alert);
 
         $value = $this->class->getPushType();
 
-        $this->assertSame('alert', $value);
+        $this->assertSame(PushType::Alert, $value);
     }
 
     /**
diff --git a/ApnsPHP/Tests/MessageSetTest.php b/ApnsPHP/Tests/MessageSetTest.php
index e2a43abe..61f7b193 100644
--- a/ApnsPHP/Tests/MessageSetTest.php
+++ b/ApnsPHP/Tests/MessageSetTest.php
@@ -10,6 +10,7 @@
 namespace ApnsPHP\Tests;
 
 use ApnsPHP\Message\Priority;
+use ApnsPHP\Message\PushType;
 
 /**
  * This class contains tests for the setter functions
@@ -71,14 +72,15 @@ public function validPriorityProvider(): array
     public function validPushTypeProvider(): array
     {
         $data   = [];
-        $data[] = [ 'alert' ];
-        $data[] = [ 'background' ];
-        $data[] = [ 'location' ];
-        $data[] = [ 'voip' ];
-        $data[] = [ 'complication' ];
-        $data[] = [ 'fileprovider' ];
-        $data[] = [ 'mdm' ];
-        $data[] = [ 'liveactivity' ];
+        $data[] = [ PushType::Alert ];
+        $data[] = [ PushType::Background ];
+        $data[] = [ PushType::Location ];
+        $data[] = [ PushType::Voip ];
+        $data[] = [ PushType::Complication ];
+        $data[] = [ PushType::FileProvider ];
+        $data[] = [ PushType::Mdm ];
+        $data[] = [ PushType::LiveActivity ];
+        $data[] = [ PushType::PushToTalk ];
 
         return $data;
     }
@@ -404,28 +406,15 @@ public function testSetValidPriority(Priority $priority): void
     /**
      * Test that setPushType() sets a push type.
      *
-     * @param string $type Push type value
+     * @param PushType $type Push type value
      *
      * @dataProvider validPushTypeProvider
      * @covers       \ApnsPHP\Message::setPushType
      */
-    public function testSetValidPushType(string $type): void
+    public function testSetValidPushType(PushType $type): void
     {
         $this->class->setPushType($type);
 
         $this->assertPropertySame('pushType', $type);
     }
-
-    /**
-     * Test that setPushType() throws an exception when trying to set an invalid push type.
-     *
-     * @covers \ApnsPHP\Message::setPushType
-     */
-    public function testSetInvalidPushType(): void
-    {
-        $this->expectException('ApnsPHP\Message\Exception');
-        $this->expectExceptionMessage('Invalid push type');
-
-        $this->class->setPushType('news');
-    }
 }
diff --git a/ApnsPHP/Tests/PushHttpSendTest.php b/ApnsPHP/Tests/PushHttpSendTest.php
index d8910375..10877433 100644
--- a/ApnsPHP/Tests/PushHttpSendTest.php
+++ b/ApnsPHP/Tests/PushHttpSendTest.php
@@ -11,6 +11,7 @@
 namespace ApnsPHP\Tests;
 
 use ApnsPHP\Message\Priority;
+use ApnsPHP\Message\PushType;
 
 /**
  * This class contains tests for the httpSend function
@@ -47,7 +48,7 @@ private function setHttpHeaders(): void
 
         $this->message->expects($this->exactly(2))
                       ->method('getPushType')
-                      ->will($this->returnValue('alert'));
+                      ->will($this->returnValue(PushType::Alert));
 
         $this->set_reflection_property_value('providerToken', 'jwt');
     }