diff --git a/backend/routes/breeder.py b/backend/routes/breeder.py
index 061c9a7..bb5efc8 100644
--- a/backend/routes/breeder.py
+++ b/backend/routes/breeder.py
@@ -21,7 +21,7 @@ _TZ = ZoneInfo("Europe/Berlin")
 BREEDER_DOCS_DIR = os.getenv("BREEDER_DOCS_DIR", "/data/breeder_docs")
 os.makedirs(BREEDER_DOCS_DIR, exist_ok=True)
 
-ADMIN_EMAIL = os.getenv("ADMIN_EMAIL", "mail@motocamp.de")
+ADMIN_EMAIL = os.getenv("ADMIN_EMAIL", "admin@banyaro.app")
 APP_URL     = os.getenv("APP_URL", "https://banyaro.app")
 
 
diff --git a/backend/routes/litters.py b/backend/routes/litters.py
index f47c809..2bcf629 100644
--- a/backend/routes/litters.py
+++ b/backend/routes/litters.py
@@ -258,7 +258,7 @@ async def welfare_confirm(litter_id: int, user=Depends(_require_breeder)):
                 "FROM breeder_profiles bp JOIN users u ON u.id=bp.user_id "
                 "WHERE bp.user_id=?", (user["id"],)
             ).fetchone()
-            admin_email = os.getenv("ADMIN_EMAIL", "mail@motocamp.de")
+            admin_email = os.getenv("ADMIN_EMAIL", "admin@banyaro.app")
             app_url     = os.getenv("APP_URL", "https://banyaro.app")
             zuechter    = profile["name"] if profile else user.get("name", "Unbekannt")
             zwinger     = profile["zwingername"] if profile else "—"
diff --git a/backend/routes/osm.py b/backend/routes/osm.py
index d75631b..e08742b 100644
--- a/backend/routes/osm.py
+++ b/backend/routes/osm.py
@@ -28,7 +28,7 @@ OVERPASS_URLS = [
 _overpass_sem       = asyncio.Semaphore(1)
 _overpass_last_req  = 0.0
 _OVERPASS_MIN_DELAY = 2.0  # Sekunden zwischen Anfragen
-_OVERPASS_UA        = 'BanYaro/1.0 (https://banyaro.app; dog-walking PWA; contact: mail@motocamp.de)'
+_OVERPASS_UA        = 'BanYaro/1.0 (https://banyaro.app; dog-walking PWA; contact: admin@banyaro.app)'
 _OVERPASS_HEADERS   = {
     'User-Agent': _OVERPASS_UA,
     'Referer':    'https://banyaro.app/',  # von overpass-api.de verlangt gegen 406
diff --git a/backend/static/js/app.js b/backend/static/js/app.js
index 5e803d0..692526b 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     = '541'; // ← bei jedem Deploy mit Frontend-Änderungen erhöhen
+const APP_VER     = '542'; // ← bei jedem Deploy mit Frontend-Änderungen erhöhen
 const APP_VERSION = '1.1.4'; // ← semantische Version, wird bei make release gesetzt
 const IS_STAGING  = location.hostname === 'staging.banyaro.app';
 
diff --git a/backend/static/js/pages/datenschutz.js b/backend/static/js/pages/datenschutz.js
index 838aaf4..73c2ba8 100644
--- a/backend/static/js/pages/datenschutz.js
+++ b/backend/static/js/pages/datenschutz.js
@@ -29,7 +29,7 @@ window.Page_datenschutz = (() => {
         ${sec('Verantwortlicher', `
           <p style="${S.p}">
             René Degelmann, Ringstr. 26, 85560 Ebersberg<br>
-            E-Mail: <a href="mailto:mail@motocamp.de" style="${S.a}">mail@motocamp.de</a>
+            E-Mail: <a href="mailto:hallo@banyaro.app" style="${S.a}">hallo@banyaro.app</a>
           </p>`)}
 
         ${sec('Deine Daten gehören dir', `
@@ -169,7 +169,7 @@ window.Page_datenschutz = (() => {
             (Art. 18) sowie <strong>Datenportabilität</strong> (Art. 20). Erteilte Einwilligungen
             kannst du jederzeit mit Wirkung für die Zukunft widerrufen (Art. 7 Abs. 3 DSGVO).
             Zur Ausübung deiner Rechte wende dich per E-Mail an
-            <a href="mailto:mail@motocamp.de" style="${S.a}">mail@motocamp.de</a>.<br><br>
+            <a href="mailto:hallo@banyaro.app" style="${S.a}">hallo@banyaro.app</a>.<br><br>
             Du hast außerdem das Recht, bei der zuständigen Datenschutz-Aufsichtsbehörde
             Beschwerde einzulegen:<br>
             <strong>Bayerisches Landesamt für Datenschutzaufsicht (BayLDA)</strong><br>
diff --git a/backend/static/js/pages/impressum.js b/backend/static/js/pages/impressum.js
index ac8b3bf..ffccb44 100644
--- a/backend/static/js/pages/impressum.js
+++ b/backend/static/js/pages/impressum.js
@@ -25,9 +25,9 @@ window.Page_impressum = (() => {
           <h2 style="font-size:var(--text-base);font-weight:var(--weight-semibold);
                      color:var(--c-text);margin:0 0 var(--space-2)">Kontakt</h2>
           <p style="font-size:var(--text-sm);color:var(--c-text-secondary);line-height:1.7;margin:0">
-            E-Mail: <a href="mailto:mail@motocamp.de"
-                       style="color:var(--c-primary)">mail@motocamp.de</a><br>
-            Kontaktformular: <a href="mailto:mail@motocamp.de"
+            E-Mail: <a href="mailto:hallo@banyaro.app"
+                       style="color:var(--c-primary)">hallo@banyaro.app</a><br>
+            Kontaktformular: <a href="mailto:hallo@banyaro.app"
                                 style="color:var(--c-primary)">Nachricht senden</a>
           </p>
         </section>
diff --git a/backend/static/sw.js b/backend/static/sw.js
index a9dd746..d493e2a 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-v564';
+const CACHE_VERSION = 'by-v565';
 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