diff --git a/backend/main.py b/backend/main.py
index 6c172d0..6dc2e56 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -406,7 +406,7 @@ async def serve_media(path: str, request: _Request):
         raise _HE(404, "Nicht gefunden.")
     return _media_response(filepath)
 
-APP_VER = "934"  # muss mit APP_VER in app.js übereinstimmen
+APP_VER = "935"  # muss mit APP_VER in app.js übereinstimmen
 
 @app.get("/.well-known/assetlinks.json")
 async def assetlinks():
diff --git a/backend/static/js/api.js b/backend/static/js/api.js
index f75b2cf..8621935 100644
--- a/backend/static/js/api.js
+++ b/backend/static/js/api.js
@@ -800,9 +800,17 @@ const API = (() => {
       get(`/osm/pois?type=${type}&south=${south}&west=${west}&north=${north}&east=${east}&fast=true`),
   };
 
+  // SW-Cache-Einträge für eine URL löschen (z.B. nach Foto-Upload)
+  async function swCacheDelete(path) {
+    try {
+      const c = await caches.open('ban-yaro-api-v1');
+      await c.delete(new Request(path));
+    } catch {}
+  }
+
   // Öffentliche API
   return {
-    get, post, put, patch, del, upload,
+    get, post, put, patch, del, upload, swCacheDelete,
     auth, dogs, diary, health, tieraerzte, healthDocs, poison,
     places, routes, walks, events, sitting, forum, lost, knigge, weather, push,
     friends, chat, webcal, importData, sharing, widget, notifications, services, ratings, sittingAccess, training, notes,
diff --git a/backend/static/js/app.js b/backend/static/js/app.js
index 64c0adb..fff0a5e 100644
--- a/backend/static/js/app.js
+++ b/backend/static/js/app.js
@@ -3,7 +3,7 @@
    Router, State-Management, Navigation, Initialisierung.
    ============================================================ */
 
-const APP_VER     = '934'; // ← bei jedem Deploy mit Frontend-Änderungen erhöhen
+const APP_VER     = '935'; // ← bei jedem Deploy mit Frontend-Änderungen erhöhen
 const APP_VERSION = '1.5.1'; // ← semantische Version, wird bei make release gesetzt
 const IS_STAGING  = location.hostname === 'staging.banyaro.app';
 // Cache-Bust-Parameter nach Update-Reload sofort entfernen
diff --git a/backend/static/js/pages/dog-profile.js b/backend/static/js/pages/dog-profile.js
index 2d4c843..13fbe76 100644
--- a/backend/static/js/pages/dog-profile.js
+++ b/backend/static/js/pages/dog-profile.js
@@ -769,9 +769,10 @@ window.Page_dog_profile = (() => {
         await API.dogs.updatePhotoPosition(dog.id, 1.0, 0.0, 0.0);
         _appState.activeDog = { ..._appState.activeDog, foto_url: result.foto_url, foto_zoom: 1, foto_offset_x: 0, foto_offset_y: 0 };
         _appState.dogs = _appState.dogs.map(d => d.id === dog.id ? _appState.activeDog : d);
-        // Hintergrund-Cache invalidieren
+        // localStorage + SW-Cache invalidieren
         const userId2 = _appState.user?.id || 'anon';
         localStorage.removeItem(`w3_bg3_${userId2}_` + new Date().toISOString().slice(0, 10));
+        API.swCacheDelete(`/api/dogs/${dog.id}/welcome-dashboard`);
         UI.modal.close();
         App.renderDogSwitcher?.();
         window.Worlds?.refresh(_appState);
@@ -1386,10 +1387,10 @@ window.Page_dog_profile = (() => {
             saved.foto_url = result.foto_url;
             _appState.activeDog = { ...saved };
             _appState.dogs = _appState.dogs.map(d => d.id === saved.id ? _appState.activeDog : d);
-            // Hintergrund-Cache invalidieren damit Welten das neue Foto zeigen
+            // localStorage + SW-Cache invalidieren damit Welten das neue Foto zeigen
             const userId = _appState.user?.id || 'anon';
-            const todayKey = `w3_bg3_${userId}_` + new Date().toISOString().slice(0, 10);
-            localStorage.removeItem(todayKey);
+            localStorage.removeItem(`w3_bg3_${userId}_` + new Date().toISOString().slice(0, 10));
+            API.swCacheDelete(`/api/dogs/${saved.id}/welcome-dashboard`);
           } catch {
             UI.toast.warning('Profil gespeichert, Foto konnte nicht hochgeladen werden.');
           }
diff --git a/backend/static/sw.js b/backend/static/sw.js
index a2733ff..82082f6 100644
--- a/backend/static/sw.js
+++ b/backend/static/sw.js
@@ -3,7 +3,7 @@
    Offline-Cache + Push Notifications + Tile-Cache
    ============================================================ */
 
-const CACHE_VERSION = 'by-v934';
+const CACHE_VERSION = 'by-v935';
 const CACHE_STATIC  = `${CACHE_VERSION}-static`;
 const CACHE_TILES   = 'ban-yaro-tiles-v1';  // bleibt über SW-Updates erhalten
 const CACHE_API     = 'ban-yaro-api-v1';    // API-Response-Cache