diff --git a/tests/unit/services/admin.test.ts b/tests/unit/services/admin.test.ts
index b138403..80a9f55 100644
--- a/tests/unit/services/admin.test.ts
+++ b/tests/unit/services/admin.test.ts
@@ -11,8 +11,7 @@ describe('AdminService - comandos básicos', () => {
   beforeEach(() => {
     process.env = { ...envBackup, NODE_ENV: 'test', ADMIN_USERS: '34600123456' };
     memdb = makeMemDb();
-    (AdminService as any).dbInstance = memdb;
-    (AllowedGroups as any).dbInstance = memdb;
+    setDb(memdb);
     AllowedGroups.resetForTests();
   });