diff --git a/lib/request.js b/lib/request.js
index 1f0a5db7..120ee380 100644
--- a/lib/request.js
+++ b/lib/request.js
@@ -2,7 +2,6 @@
 // import {isIP} from 'net';
 // import {Agent as HttpsAgent} from 'https';
 // import roundRobin from '@derhuerst/round-robin-scheduler';
-import {randomBytes} from 'crypto';
 import {stringify} from 'qs';
 import {Request, fetch} from 'cross-fetch';
 import {parse as parseContentType} from 'content-type';
@@ -58,6 +57,14 @@ import {HafasError} from './errors.js';
 // 	return ua;
 // };
 
+const randomBytesHex = (nBytes = 8) => {
+	const array = new Uint8Array(nBytes);
+	crypto.getRandomValues(array);
+	return Array.from(array)
+	  .map((byte) => byte.toString(16).padStart(2, '0'))
+	  .join('');
+  };
+
 const checkIfResponseIsOk = (_) => {
 	const {
 		body,
@@ -122,8 +129,7 @@ const request = async (ctx, userAgent, reqData) => {
 	if (reqOptions.query) {
 		url += '?' + stringify(reqOptions.query, {arrayFormat: 'brackets', encodeValuesOnly: true});
 	}
-	const reqId = randomBytes(3)
-		.toString('hex');
+	const reqId = randomBytesHex(3);
 	const fetchReq = new Request(url, reqOptions);
 	profile.logRequest(ctx, fetchReq, reqId);