diff --git a/src/Entities/Shared/TransactionPaymentAttempt.php b/src/Entities/Shared/TransactionPaymentAttempt.php
index ce8f5cd..c1578e9 100644
--- a/src/Entities/Shared/TransactionPaymentAttempt.php
+++ b/src/Entities/Shared/TransactionPaymentAttempt.php
@@ -20,7 +20,7 @@ class TransactionPaymentAttempt
      */
     private function __construct(
         public string $paymentAttemptId,
-        public string $paymentMethodId,
+        public string|null $paymentMethodId,
         public string $storedPaymentMethodId,
         public string $amount,
         public PaymentAttemptStatus $status,