diff --git a/lib/tools/Serialport_parser.js b/lib/tools/Serialport_parser.js
index 3416b5d..cd6af00 100644
--- a/lib/tools/Serialport_parser.js
+++ b/lib/tools/Serialport_parser.js
@@ -2,7 +2,7 @@
 /*jslint es6 */
 'use strict';
 
-const Transform = require('stream').Transform;
+const Transform = require('node:stream').Transform;
 const CRC8 = require('./CRC8');
 const BUFFER_LENGTH = 6 + 65536;
 
diff --git a/main.js b/main.js
index c5dd851..b6c796c 100644
--- a/main.js
+++ b/main.js
@@ -2,10 +2,10 @@
 
 const utils = require('@iobroker/adapter-core');
 const { SerialPort } = require('serialport');
-const net = require('net');
-const os = require('os');
-const fs = require('fs');
-const path = require('path');
+const net = require('node:net');
+const os = require('node:os');
+const fs = require('node:fs');
+const path = require('node:path');
 
 // structured representation for ESP3 packets
 const ESP3Packet = require('./lib/tools/ESP3Packet').ESP3Packet;