diff --git a/stt/client/pyproject.toml b/stt/client/pyproject.toml
index 730cbd8..f9be9fb 100644
--- a/stt/client/pyproject.toml
+++ b/stt/client/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "stt"
-version = "0.2.0"
+version = "0.2.1"
 description = "STT — client vocal Jarvis du homelab Funk (voix + HUD, parle au STT-server)"
 requires-python = ">=3.11"
 readme = "README.md"
diff --git a/stt/client/stt/ui/app.py b/stt/client/stt/ui/app.py
index 6092604..ceb90ed 100644
--- a/stt/client/stt/ui/app.py
+++ b/stt/client/stt/ui/app.py
@@ -9,6 +9,7 @@ from __future__ import annotations
 import asyncio
 import json
 import threading
+import time
 from functools import partial
 from http.server import SimpleHTTPRequestHandler, ThreadingHTTPServer
 from pathlib import Path
@@ -97,7 +98,9 @@ async def serve(cfg: dict[str, Any], make_engine, client) -> None:
         url = f"http://{ui['ws_host']}:{ui['http_port']}/"
         print(f"  HUD : {url}")
         if ui.get("kiosk"):
-            _open_browser(url, kiosk=True)
+            # ?v=<timestamp> : URL unique à chaque lancement → le navigateur ne peut
+            # pas servir une version cachée du HUD (« ancien HUD persistant »).
+            _open_browser(f"{url}?v={int(time.time())}", kiosk=True)
         await asyncio.Future()  # tourne indéfiniment