diff --git a/frontend/nginx.conf b/frontend/nginx.conf
index 032258a..995969b 100644
--- a/frontend/nginx.conf
+++ b/frontend/nginx.conf
@@ -17,8 +17,23 @@ server {
         application/javascript application/json
         image/svg+xml;
 
-    # ── PWA : cache long sur les assets hasheés ───────────────
-    location ~* \.(js|css|woff2?|png|svg|ico|webmanifest)$ {
+    # ── Service Worker — jamais mis en cache (sinon l'ancien SW tourne après déploiement)
+    location = /sw.js {
+        add_header Cache-Control "no-cache, no-store, must-revalidate";
+        add_header Pragma "no-cache";
+        expires 0;
+        try_files $uri =404;
+    }
+
+    # ── Manifeste PWA — pas de cache long (doit se mettre à jour)
+    location ~* \.webmanifest$ {
+        add_header Cache-Control "no-cache, no-store, must-revalidate";
+        expires 0;
+        try_files $uri =404;
+    }
+
+    # ── PWA : cache long sur les assets hashés par Vite ──────────
+    location ~* \.(js|css|woff2?|png|svg|ico)$ {
         expires 1y;
         add_header Cache-Control "public, immutable";
         try_files $uri =404;
@@ -27,7 +42,7 @@ server {
     # ── API → backend (service Docker interne) ────────────────
     location /api/ {
         set $upstream_backend http://notesfrais-backend:3001;
-        proxy_pass         $upstream_backend/api/;
+        proxy_pass         $upstream_backend;
         proxy_http_version 1.1;
 
         proxy_set_header Host              $host;
diff --git a/frontend/vite.config.ts b/frontend/vite.config.ts
index 5ef0d6c..e2fe5bc 100644
--- a/frontend/vite.config.ts
+++ b/frontend/vite.config.ts
@@ -26,13 +26,15 @@ export default defineConfig({
       },
       workbox: {
         globPatterns: ['**/*.{js,css,html,ico,png,svg,woff2}'],
+        cleanupOutdatedCaches: true,
         runtimeCaching: [
           {
-            // Cache API responses (stale-while-revalidate pour les listes)
+            // Network-first pour les listes (évite de servir un cache vide)
             urlPattern: /^\/api\/(?:companies|categories)/,
-            handler: 'StaleWhileRevalidate',
+            handler: 'NetworkFirst',
             options: {
-              cacheName: 'api-static',
+              cacheName: 'notesfrais-api-static',
+              networkTimeoutSeconds: 8,
               expiration: { maxEntries: 20, maxAgeSeconds: 60 * 60 },
             },
           },
@@ -41,7 +43,7 @@ export default defineConfig({
             urlPattern: /^\/api\/invoices/,
             handler: 'NetworkFirst',
             options: {
-              cacheName: 'api-invoices',
+              cacheName: 'notesfrais-api-invoices',
               networkTimeoutSeconds: 8,
               expiration: { maxEntries: 100, maxAgeSeconds: 24 * 60 * 60 },
             },