diff --git a/src/virtualenv/seed/wheels/periodic_update.py b/src/virtualenv/seed/wheels/periodic_update.py
index 4725a57a8..45584f91b 100644
--- a/src/virtualenv/seed/wheels/periodic_update.py
+++ b/src/virtualenv/seed/wheels/periodic_update.py
@@ -6,10 +6,10 @@
 
 import json
 import logging
+import os
 import ssl
 import subprocess
 import sys
-import os
 from datetime import datetime, timedelta
 from itertools import groupby
 from shutil import copy2
@@ -236,7 +236,7 @@ def _run_do_update(app_data, distribution, embed_filename, for_py_version, perio
             search_dirs=search_dirs,
             app_data=app_data,
             to_folder=wheelhouse,
-            env=os.environ
+            env=os.environ,
         )
         if dest is None or (u_log.versions and u_log.versions[0].filename == dest.name):
             break