diff --git a/composer.json b/composer.json
index 498a01f..f72cfad 100755
--- a/composer.json
+++ b/composer.json
@@ -12,8 +12,8 @@
         }
     ],
     "require": {
-        "php": "^7.1",
-        "sylius/sylius": "^1.1",
+        "php": "^8.0 || ^8.1",
+        "sylius/sylius": "^1.11 || ^1.12 || ^1.13",
         "ext-curl": "*",
         "ext-json": "*"
     },
diff --git a/lib/constants.php b/lib/constants.php
index 3b03c10..2df788c 100755
--- a/lib/constants.php
+++ b/lib/constants.php
@@ -26,53 +26,53 @@
 define('SAGEPAY_TXN_COMPLETE', 'COMPLETE');
 
 // Define Server URLs for all integration methods.
-define('SAGEPAY_SERVER_SHOWPOST', 'https://test.sagepay.com/showpost/showpost.asp');
-define('SAGEPAY_SERVER_SIMULATOR', 'https://test.sagepay.com/Simulator/VSPDirectGateway.asp');
+define('SAGEPAY_SERVER_SHOWPOST', 'https://sandbox.opayo.eu.elavon.com/showpost/showpost.asp');
+define('SAGEPAY_SERVER_SIMULATOR', 'https://sandbox.opayo.eu.elavon.com/Simulator/VSPDirectGateway.asp');
 
-define('SAGEPAY_DIRECT_SERVER_LIVE', 'https://live.sagepay.com/gateway/service/vspdirect-register.vsp');
-define('SAGEPAY_DIRECT_SERVER_TEST', 'https://test.sagepay.com/gateway/service/vspdirect-register.vsp');
+define('SAGEPAY_DIRECT_SERVER_LIVE', 'https://live.opayo.eu.elavon.com/gateway/service/vspdirect-register.vsp');
+define('SAGEPAY_DIRECT_SERVER_TEST', 'https://sandbox.opayo.eu.elavon.com/gateway/service/vspdirect-register.vsp');
 
-define('SAGEPAY_DIRECT_SERVER_3D_SECURE_CALLBACK_LIVE', 'https://live.sagepay.com/gateway/service/direct3dcallback.vsp');
-define('SAGEPAY_DIRECT_SERVER_3D_SECURE_CALLBACK_TEST', 'https://test.sagepay.com/gateway/service/direct3dcallback.vsp');
+define('SAGEPAY_DIRECT_SERVER_3D_SECURE_CALLBACK_LIVE', 'https://live.opayo.eu.elavon.com/gateway/service/direct3dcallback.vsp');
+define('SAGEPAY_DIRECT_SERVER_3D_SECURE_CALLBACK_TEST', 'https://sandbox.opayo.eu.elavon.com/gateway/service/direct3dcallback.vsp');
 
-define('SAGEPAY_FORM_SERVER_LIVE', 'https://live.sagepay.com/gateway/service/vspform-register.vsp');
-define('SAGEPAY_FORM_SERVER_TEST', 'https://test.sagepay.com/gateway/service/vspform-register.vsp');
+define('SAGEPAY_FORM_SERVER_LIVE', 'https://live.opayo.eu.elavon.com/gateway/service/vspform-register.vsp');
+define('SAGEPAY_FORM_SERVER_TEST', 'https://sandbox.opayo.eu.elavon.com/gateway/service/vspform-register.vsp');
 
-define('SAGEPAY_SERVER_SERVER_LIVE', 'https://live.sagepay.com/gateway/service/vspserver-register.vsp');
-define('SAGEPAY_SERVER_SERVER_TEST', 'https://test.sagepay.com/gateway/service/vspserver-register.vsp');
+define('SAGEPAY_SERVER_SERVER_LIVE', 'https://live.opayo.eu.elavon.com/gateway/service/vspserver-register.vsp');
+define('SAGEPAY_SERVER_SERVER_TEST', 'https://sandbox.opayo.eu.elavon.com/gateway/service/vspserver-register.vsp');
 
-define('SAGEPAY_SHARED_REPEAT_TRANSACTION_LIVE', 'https://live.sagepay.com/gateway/service/repeat.vsp');
-define('SAGEPAY_SHARED_REPEAT_TRANSACTION_TEST', 'https://test.sagepay.com/gateway/service/repeat.vsp');
+define('SAGEPAY_SHARED_REPEAT_TRANSACTION_LIVE', 'https://live.opayo.eu.elavon.com/gateway/service/repeat.vsp');
+define('SAGEPAY_SHARED_REPEAT_TRANSACTION_TEST', 'https://sandbox.opayo.eu.elavon.com/gateway/service/repeat.vsp');
 
-define('SAGEPAY_SHARED_ABORT_TRANSACTION_LIVE', 'https://live.sagepay.com/gateway/service/abort.vsp');
-define('SAGEPAY_SHARED_ABORT_TRANSACTION_TEST', 'https://test.sagepay.com/gateway/service/abort.vsp');
+define('SAGEPAY_SHARED_ABORT_TRANSACTION_LIVE', 'https://live.opayo.eu.elavon.com/gateway/service/abort.vsp');
+define('SAGEPAY_SHARED_ABORT_TRANSACTION_TEST', 'https://sandbox.opayo.eu.elavon.com/gateway/service/abort.vsp');
 
-define('SAGEPAY_SHARED_RELEASE_TRANSACTION_LIVE', 'https://live.sagepay.com/gateway/service/release.vsp');
-define('SAGEPAY_SHARED_RELEASE_TRANSACTION_TEST', 'https://test.sagepay.com/gateway/service/release.vsp');
+define('SAGEPAY_SHARED_RELEASE_TRANSACTION_LIVE', 'https://live.opayo.eu.elavon.com/gateway/service/release.vsp');
+define('SAGEPAY_SHARED_RELEASE_TRANSACTION_TEST', 'https://sandbox.opayo.eu.elavon.com/gateway/service/release.vsp');
 
-define('SAGEPAY_SHARED_REFUND_TRANSACTION_LIVE', 'https://live.sagepay.com/gateway/service/refund.vsp');
-define('SAGEPAY_SHARED_REFUND_TRANSACTION_TEST', 'https://test.sagepay.com/gateway/service/refund.vsp');
+define('SAGEPAY_SHARED_REFUND_TRANSACTION_LIVE', 'https://live.opayo.eu.elavon.com/gateway/service/refund.vsp');
+define('SAGEPAY_SHARED_REFUND_TRANSACTION_TEST', 'https://sandbox.opayo.eu.elavon.com/gateway/service/refund.vsp');
 
-define('SAGEPAY_SHARED_VOID_TRANSACTION_LIVE', 'https://live.sagepay.com/gateway/service/void.vsp');
-define('SAGEPAY_SHARED_VOID_TRANSACTION_TEST', 'https://test.sagepay.com/gateway/service/void.vsp');
+define('SAGEPAY_SHARED_VOID_TRANSACTION_LIVE', 'https://live.opayo.eu.elavon.com/gateway/service/void.vsp');
+define('SAGEPAY_SHARED_VOID_TRANSACTION_TEST', 'https://sandbox.opayo.eu.elavon.com/gateway/service/void.vsp');
 
-define('SAGEPAY_SHARED_AUTHORISE_TRANSACTION_LIVE', 'https://live.sagepay.com/gateway/service/authorise.vsp');
-define('SAGEPAY_SHARED_AUTHORISE_TRANSACTION_TEST', 'https://test.sagepay.com/gateway/service/authorise.vsp');
+define('SAGEPAY_SHARED_AUTHORISE_TRANSACTION_LIVE', 'https://live.opayo.eu.elavon.com/gateway/service/authorise.vsp');
+define('SAGEPAY_SHARED_AUTHORISE_TRANSACTION_TEST', 'https://sandbox.opayo.eu.elavon.com/gateway/service/authorise.vsp');
 
-define('SAGEPAY_SHARED_CANCEL_TRANSACTION_LIVE', 'https://live.sagepay.com/gateway/service/cancel.vsp');
-define('SAGEPAY_SHARED_CANCEL_TRANSACTION_TEST', 'https://test.sagepay.com/gateway/service/cancel.vsp');
+define('SAGEPAY_SHARED_CANCEL_TRANSACTION_LIVE', 'https://live.opayo.eu.elavon.com/gateway/service/cancel.vsp');
+define('SAGEPAY_SHARED_CANCEL_TRANSACTION_TEST', 'https://sandbox.opayo.eu.elavon.com/gateway/service/cancel.vsp');
 
-define('SAGEPAY_SERVER_TOKEN_REGISTER_LIVE', 'https://live.sagepay.com/gateway/service/token.vsp');
-define('SAGEPAY_SERVER_TOKEN_REGISTER_TEST', 'https://test.sagepay.com/gateway/service/token.vsp');
+define('SAGEPAY_SERVER_TOKEN_REGISTER_LIVE', 'https://live.opayo.eu.elavon.com/gateway/service/token.vsp');
+define('SAGEPAY_SERVER_TOKEN_REGISTER_TEST', 'https://sandbox.opayo.eu.elavon.com/gateway/service/token.vsp');
 
-define('SAGEPAY_DIRECT_TOKEN_REGISTER_LIVE', 'https://live.sagepay.com/gateway/service/directtoken.vsp');
-define('SAGEPAY_DIRECT_TOKEN_REGISTER_TEST', 'https://test.sagepay.com/gateway/service/directtoken.vsp');
+define('SAGEPAY_DIRECT_TOKEN_REGISTER_LIVE', 'https://live.opayo.eu.elavon.com/gateway/service/directtoken.vsp');
+define('SAGEPAY_DIRECT_TOKEN_REGISTER_TEST', 'https://sandbox.opayo.eu.elavon.com/gateway/service/directtoken.vsp');
 
-define('SAGEPAY_TOKEN_REMOVE_LIVE', 'https://live.sagepay.com/gateway/service/removetoken.vsp');
-define('SAGEPAY_TOKEN_REMOVE_TEST', 'https://test.sagepay.com/gateway/service/removetoken.vsp');
+define('SAGEPAY_TOKEN_REMOVE_LIVE', 'https://live.opayo.eu.elavon.com/gateway/service/removetoken.vsp');
+define('SAGEPAY_TOKEN_REMOVE_TEST', 'https://sandbox.opayo.eu.elavon.com/gateway/service/removetoken.vsp');
 
-define('SAGEPAY_PAYPAL_COMPLETION_TEST', 'https://test.sagepay.com/gateway/service/complete.vsp');
-define('SAGEPAY_PAYPAL_COMPLETION_LIVE', 'https://live.sagepay.com/gateway/service/complete.vsp');
+define('SAGEPAY_PAYPAL_COMPLETION_TEST', 'https://sandbox.opayo.eu.elavon.com/gateway/service/complete.vsp');
+define('SAGEPAY_PAYPAL_COMPLETION_LIVE', 'https://live.opayo.eu.elavon.com/gateway/service/complete.vsp');
 
 // Define Settings for integration method.
 define('SAGEPAY_FORM', 'form');
diff --git a/src/SagepayApi.php b/src/SagepayApi.php
index 980d39d..f2d0023 100644
--- a/src/SagepayApi.php
+++ b/src/SagepayApi.php
@@ -43,7 +43,7 @@ public function __construct(array $options, HttpClientInterface $client, Message
      */
     public function getApiEndpoint()
     {
-        return $this->options['sandbox'] ? 'https://pi-test.sagepay.com/api/v1/' : 'https://pi-live.sagepay.com/api/v1/';
+        return $this->options['sandbox'] ? 'https://sandbox.opayo.eu.elavon.com/api/v1/' : 'https://live.opayo.eu.elavon.com/api/v1/';
     }
 
     /**
@@ -51,7 +51,7 @@ public function getApiEndpoint()
      */
     public function getOffsiteEndpoint()
     {
-        return $this->options['sandbox'] ? 'https://test.sagepay.com/gateway/service/vspform-register.vsp' : 'https://live.sagepay.com/gateway/service/vspform-register.vsp';
+        return $this->options['sandbox'] ? 'https://sandbox.opayo.eu.elavon.com/gateway/service/vspform-register.vsp' : 'https://live.opayo.eu.elavon.com/gateway/service/vspform-register.vsp';
     }
 
     public function getOption(string $option)