diff --git a/install.sh b/install.sh
index a5a69ea..52d68ac 100755
--- a/install.sh
+++ b/install.sh
@@ -7,7 +7,7 @@ if [ ! -e ${sys_dir}/plugins/BillTech/lms.pem ]; then
 fi
 
 cd ../../
-composer require guzzlehttp/guzzle:^6.0
+composer require guzzlehttp/guzzle:^7.0
 composer dump-autoload
 
 cd plugins/BillTech
diff --git a/lib/BillTechLinkApiService.php b/lib/BillTechLinkApiService.php
index f81a3d7..bcf7d2c 100644
--- a/lib/BillTechLinkApiService.php
+++ b/lib/BillTechLinkApiService.php
@@ -36,10 +36,10 @@ public static function generatePaymentLinks($linkRequests)
 					'providerCode' => ConfigHelper::getConfig('billtech.isp_id'),
 					'payments' => $apiRequests
 				],
-				'exceptions' => FALSE
+				'http_errors' => FALSE
 			]);
 		} catch (ClientException $e) {
-			$response = $e->GetResponse();
+			$response = $e->getResponse();
 			if ($response) {
 				self::handleBadResponse($response, self::BASE_PATH);
 			} else {
@@ -82,7 +82,7 @@ public static function cancelPaymentLink($token, $resolution = "CANCELLED")
 			"json" => [
 				"resolution" => $resolution
 			],
-			"exceptions" => FALSE
+			"http_errors" => FALSE
 		]);
 
 		if (!in_array($response->getStatusCode(), [204, 404, 409])) {