diff --git a/backend/src/main/java/pl/polskalokalnie/config/DataSeeder.java b/backend/src/main/java/pl/polskalokalnie/config/DataSeeder.java
index 1677538..9e6aedb 100644
--- a/backend/src/main/java/pl/polskalokalnie/config/DataSeeder.java
+++ b/backend/src/main/java/pl/polskalokalnie/config/DataSeeder.java
@@ -45,7 +45,7 @@ public class DataSeeder implements CommandLineRunner {
             PromotionPackageRepository promotionPackageRepository,
             PasswordEncoder passwordEncoder,
             NickService nickService,
-            @Value("${app.admin.email:admin@mieszko.pl}") String adminEmail,
+            @Value("${app.admin.email:admin@softspm.com}") String adminEmail,
             @Value("${app.admin.password:Admin123!}") String adminPassword,
             @Value("${app.admin.name:Administrator Polska Lokalnie}") String adminName
     ) {
diff --git a/backend/src/main/resources/application.yml b/backend/src/main/resources/application.yml
index d879199..fa90539 100644
--- a/backend/src/main/resources/application.yml
+++ b/backend/src/main/resources/application.yml
@@ -26,6 +26,6 @@ app:
     secret: ${APP_JWT_SECRET:local-dev-secret-change-me-please-32chars-min}
     expiration-seconds: ${APP_JWT_EXPIRATION_SECONDS:86400}
   admin:
-    email: ${APP_ADMIN_EMAIL:admin@mieszko.pl}
+    email: ${APP_ADMIN_EMAIL:admin@softspm.com}
     password: ${APP_ADMIN_PASSWORD:Admin123!}
     name: ${APP_ADMIN_NAME:Administrator Polska Lokalnie}
diff --git a/backend/src/test/resources/application.yml b/backend/src/test/resources/application.yml
index eaf8614..cc0c75d 100644
--- a/backend/src/test/resources/application.yml
+++ b/backend/src/test/resources/application.yml
@@ -13,6 +13,6 @@ app:
     secret: test-secret-key-for-junit-context-32chars-min
     expiration-seconds: 3600
   admin:
-    email: admin@mieszko.pl
+    email: admin@softspm.com
     password: Admin123!
     name: Administrator Polska Lokalnie
diff --git a/frontend/tests/routing.spec.ts b/frontend/tests/routing.spec.ts
index c1db5e0..061e3af 100644
--- a/frontend/tests/routing.spec.ts
+++ b/frontend/tests/routing.spec.ts
@@ -4,7 +4,7 @@ import { ROUTES } from '../src/routes';
 // Standard projektu (AGENTS.md): kazdy widok ma wlasny URL obslugiwany przez React Router,
 // a nawigacja odbywa sie przez <Link>/<NavLink>. Te testy pilnuja tej zasady.
 
-const ADMIN = { email: 'admin@mieszko.pl', password: 'Admin123!' };
+const ADMIN = { email: 'admin@softspm.com', password: 'Admin123!' };
 
 const PUBLIC_ROUTES = [
   ROUTES.home,