diff --git a/app/PaymentDrivers/Stripe/UpdatePaymentMethods.php b/app/PaymentDrivers/Stripe/UpdatePaymentMethods.php
index 2951672847..18c75f712b 100644
--- a/app/PaymentDrivers/Stripe/UpdatePaymentMethods.php
+++ b/app/PaymentDrivers/Stripe/UpdatePaymentMethods.php
@@ -241,17 +241,17 @@ class UpdatePaymentMethods
                  * @class \Stripe\PaymentMethod $method
                  * @property \Stripe\StripeObject $card
                  * @class \Stripe\StripeObject $card
-                 * @property string $exp_year
-                 * @property string $exp_month
-                 * @property string $brand
-                 * @property string $last4
+                 * @property string|null $exp_year
+                 * @property string|null $exp_month
+                 * @property string|null $brand
+                 * @property string|null $last4
                 */
 
                 $payment_meta = new \stdClass();
-                $payment_meta->exp_month = (string) $method->card->exp_month ?? '00';
-                $payment_meta->exp_year = (string) $method->card->exp_year ?? '0000';
-                $payment_meta->brand = (string) $method->card->brand ?? 'visa';
-                $payment_meta->last4 = (string) $method->card->last4 ?? 'link';
+                $payment_meta->exp_month = (string) ($method->card->exp_month ?? '00');
+                $payment_meta->exp_year = (string) ($method->card->exp_year ?? '0000');
+                $payment_meta->brand = (string) ($method->card->brand ?? 'visa');
+                $payment_meta->last4 = (string) ($method->card->last4 ?? 'link');
                 $payment_meta->type = GatewayType::CREDIT_CARD;
 
                 return $payment_meta;