diff --git a/app/routers/pages.py b/app/routers/pages.py
index d542b39..34e73b4 100644
--- a/app/routers/pages.py
+++ b/app/routers/pages.py
@@ -12,6 +12,13 @@ protected = APIRouter(tags=["pages"], include_in_schema=False, dependencies=[Dep
 
 templates = Jinja2Templates(directory=BASE_DIR / "app" / "templates")
 
+# Cache-busting des assets : version dérivée de la date des fichiers statiques —
+# tout changement de CSS/JS invalide le cache navigateur sans intervention.
+_static_root = BASE_DIR / "app" / "static"
+templates.env.globals["asset_v"] = str(
+    max(int(p.stat().st_mtime) for p in _static_root.rglob("*") if p.is_file())
+)
+
 
 @router.get("/login", response_class=HTMLResponse)
 async def login_page(request: Request) -> HTMLResponse:
diff --git a/app/templates/base.html b/app/templates/base.html
index 50650ec..dd15749 100644
--- a/app/templates/base.html
+++ b/app/templates/base.html
@@ -4,7 +4,7 @@
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <title>{% block title %}Ohm Stream{% endblock %}</title>
-  <link rel="stylesheet" href="/static/css/style.css">
+  <link rel="stylesheet" href="/static/css/style.css?v={{ asset_v }}">
   <link rel="preconnect" href="https://fonts.googleapis.com">
   <link href="https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&display=swap" rel="stylesheet">
   <script src="https://unpkg.com/htmx.org@2.0.4"></script>
@@ -37,8 +37,8 @@
 <main class="main">
   {% block content %}{% endblock %}
 </main>
-<script src="/static/js/app.js"></script>
-<script src="/static/js/update-watcher.js"></script>
+<script src="/static/js/app.js?v={{ asset_v }}"></script>
+<script src="/static/js/update-watcher.js?v={{ asset_v }}"></script>
 {% block scripts %}{% endblock %}
 </body>
 </html>
diff --git a/app/templates/login.html b/app/templates/login.html
index c1f2825..b3b73a9 100644
--- a/app/templates/login.html
+++ b/app/templates/login.html
@@ -4,7 +4,7 @@
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <title>Connexion — Ohm Stream</title>
-  <link rel="stylesheet" href="/static/css/style.css">
+  <link rel="stylesheet" href="/static/css/style.css?v={{ asset_v }}">
   <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap" rel="stylesheet">
   <script defer src="https://cdn.jsdelivr.net/npm/alpinejs@3.14.1/dist/cdn.min.js"></script>
 </head>