diff --git a/specs/basic-card-payment.html b/specs/basic-card-payment.html
index 35a9b747..74ba4673 100644
--- a/specs/basic-card-payment.html
+++ b/specs/basic-card-payment.html
@@ -191,10 +191,10 @@ <h2>Payment Method Response</h2>
       <h2>BasicCardResponse</h2>
       <pre class="idl">
         dictionary BasicCardResponse {
-          required DOMString cardholderName;
+          DOMString cardholderName;
           required DOMString cardNumber;
-          required DOMString expiryMonth;
-          required DOMString expiryYear;
+          DOMString expiryMonth;
+          DOMString expiryYear;
 		  DOMString cardSecurityCode;
 		  
           BillingAddress? billingAddress;