diff --git a/modules/ppcp-blocks/src/Endpoint/UpdateShippingEndpoint.php b/modules/ppcp-blocks/src/Endpoint/UpdateShippingEndpoint.php
index c8e0417ab..43032c588 100644
--- a/modules/ppcp-blocks/src/Endpoint/UpdateShippingEndpoint.php
+++ b/modules/ppcp-blocks/src/Endpoint/UpdateShippingEndpoint.php
@@ -23,7 +23,7 @@ use WooCommerce\PayPalCommerce\Button\Endpoint\RequestData;
  */
 class UpdateShippingEndpoint implements EndpointInterface {
 	const ENDPOINT              = 'ppc-update-shipping';
-	const WC_STORE_API_ENDPOINT = '/wp-json/wc/store/cart/';
+	const WC_STORE_API_ENDPOINT = '/wp-json/wc/store/v1/cart/';
 
 	/**
 	 * The Request Data Helper.
diff --git a/modules/ppcp-button/resources/js/modules/Helper/ShippingHandler.js b/modules/ppcp-button/resources/js/modules/Helper/ShippingHandler.js
index ae86ddea0..03952b14a 100644
--- a/modules/ppcp-button/resources/js/modules/Helper/ShippingHandler.js
+++ b/modules/ppcp-button/resources/js/modules/Helper/ShippingHandler.js
@@ -21,8 +21,8 @@ export const handleShippingOptionsChange = async ( data, actions, config ) => {
 					credentials: 'same-origin',
 					headers: {
 						'Content-Type': 'application/json',
-						'X-WC-Store-API-Nonce':
-							config.ajax.update_customer_shipping.wp_rest_nonce,
+                        'Nonce':
+                            config.ajax.update_customer_shipping.wp_rest_nonce,
 					},
 					body: JSON.stringify( {
 						rate_id: shippingOptionId,
@@ -106,9 +106,9 @@ export const handleShippingAddressChange = async ( data, actions, config ) => {
 						credentials: 'same-origin',
 						headers: {
 							'Content-Type': 'application/json',
-							'X-WC-Store-API-Nonce':
-								config.ajax.update_customer_shipping
-									.wp_rest_nonce,
+                            'Nonce':
+                            config.ajax.update_customer_shipping
+                                .wp_rest_nonce,
 						},
 						body: JSON.stringify( {
 							shipping_address: cartData.shipping_address,