diff --git a/transip_client/main.py b/transip_client/main.py
index b451d6b..35030f7 100644
--- a/transip_client/main.py
+++ b/transip_client/main.py
@@ -1,9 +1,9 @@
 import base64
 import json
 import logging
-import time
 
 from concurrent.futures import ThreadPoolExecutor, as_completed
+from secrets import token_urlsafe
 from typing import Generator
 
 import requests
@@ -28,7 +28,7 @@ def _get_token(private_key_path: str, login: str, api_url: str) -> str:
         f"{api_url}/auth",
         json={
             "login": login,
-            "nonce": str(int(time.time() * 1000)),
+            "nonce": token_urlsafe(),
             "read_only": False,
             "expiration_time": "30 minutes",
             "label": "Trans IP client",