diff --git a/src/Types/PaymentMethod.php b/src/Types/PaymentMethod.php
index e7db376c..0df7a433 100644
--- a/src/Types/PaymentMethod.php
+++ b/src/Types/PaymentMethod.php
@@ -136,4 +136,9 @@ class PaymentMethod
      * @link https://docs.mollie.com/point-of-sale/overview
      */
     public const POINT_OF_SALE = "pointofsale";
+
+    /**
+     * @link https://www.mollie.com/en/payments/twint
+     */
+    public const TWINT = "twint";
 }