diff --git a/lib/Client.js b/lib/Client.js
index 48d97c0..335fbd2 100644
--- a/lib/Client.js
+++ b/lib/Client.js
@@ -215,9 +215,9 @@ module.exports = class Client {
 					.data(r)
 					.persist();
 
-			rock.post(
-				this.url,
-				{
+			rock({
+					method: 'POST',
+					url: this.url,
 					body: r,
 					headers: { 'content-type': 'text/xml;charset=UTF-8' },
 				},
diff --git a/package.json b/package.json
index cfd2473..5617d2a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "ebics-client",
-	"version": "4.0.0",
+	"version": "4.1.0",
 	"description": "Node.js ISO 20022 Compliant EBICS Client",
 	"main": "index.js",
 	"files": [
@@ -57,7 +57,7 @@
 			"url": "https://github.com/Herrie82"
 		}
 	],
-	"license": "GPL-3.0-only",
+	"license": "MIT",
 	"dependencies": {
 		"@xmldom/xmldom": "^0.8.10",
 		"handlebars": "^4.7.8",