diff --git a/src/Types/PaymentMethod.php b/src/Types/PaymentMethod.php
index 7c743656..e7db376c 100644
--- a/src/Types/PaymentMethod.php
+++ b/src/Types/PaymentMethod.php
@@ -79,11 +79,13 @@ class PaymentMethod
      */
     public const KBC = "kbc";
 
+    public const KLARNA_ONE = "klarna";
+
     /**
      * @link https://www.mollie.com/en/payments/klarna-pay-later
      */
     public const KLARNA_PAY_LATER = "klarnapaylater";
-    
+
     /**
      * @link https://www.mollie.com/en/payments/klarna-pay-now
      */
@@ -124,7 +126,7 @@ class PaymentMethod
      * @link https://www.mollie.com/en/payments/sofort
      */
     public const SOFORT = "sofort";
-    
+
     /**
      * @link https://www.mollie.com/en/payments/in3
      */