diff --git a/api/src/utils/generics/base-repository.spec.ts b/api/src/utils/generics/base-repository.spec.ts
index 95d19fdb..e26e8a10 100644
--- a/api/src/utils/generics/base-repository.spec.ts
+++ b/api/src/utils/generics/base-repository.spec.ts
@@ -12,10 +12,18 @@ import { Model, Types } from 'mongoose';
 import { DummyRepository } from '@/utils/test/dummy/repositories/dummy.repository';
 import { closeInMongodConnection } from '@/utils/test/test';
 
+import { flatten } from '../helpers/flatten';
 import { DummyModule } from '../test/dummy/dummy.module';
 import { Dummy } from '../test/dummy/schemas/dummy.schema';
 import { buildTestingMocks } from '../test/utils';
 
+import { BaseSchema } from './base-schema';
+
+const FLATTEN_PAYLOAD = {
+  dummy: 'updated dummy text',
+  dynamicField: { field1: 'value1', field2: 'value2' },
+} as const satisfies Omit<Dummy, keyof BaseSchema>;
+
 describe('BaseRepository', () => {
   let dummyModel: Model<Dummy>;
   let dummyRepository: DummyRepository;
@@ -140,6 +148,32 @@ describe('BaseRepository', () => {
       });
     });
 
+    it('should updated and flatten by id and return one dummy data', async () => {
+      jest.spyOn(dummyModel, 'findOneAndUpdate');
+      const result = await dummyRepository.updateOne(
+        createdId,
+        FLATTEN_PAYLOAD,
+        {
+          new: true,
+          shouldFlatten: true,
+        },
+      );
+
+      expect(dummyModel.findOneAndUpdate).toHaveBeenCalledWith(
+        { _id: createdId },
+        {
+          $set: flatten(FLATTEN_PAYLOAD),
+        },
+        {
+          new: true,
+        },
+      );
+      expect(result).toEqualPayload({
+        dummy: 'updated dummy text',
+        dynamicField: { field1: 'value1', field2: 'value2' },
+      });
+    });
+
     it('should update by id and invoke lifecycle hooks', async () => {
       const created = await dummyRepository.create({ dummy: 'initial text' });
       const mockUpdate = { dummy: 'updated dummy text' };
diff --git a/api/src/utils/test/dummy/schemas/dummy.schema.ts b/api/src/utils/test/dummy/schemas/dummy.schema.ts
index edab8598..fe8acc06 100644
--- a/api/src/utils/test/dummy/schemas/dummy.schema.ts
+++ b/api/src/utils/test/dummy/schemas/dummy.schema.ts
@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024 Hexastack. All rights reserved.
+ * Copyright © 2025 Hexastack. All rights reserved.
  *
  * Licensed under the GNU Affero General Public License v3.0 (AGPLv3) with the following additional terms:
  * 1. The name "Hexabot" is a trademark of Hexastack. You may not use this name in derivative works without express written permission.
@@ -19,6 +19,11 @@ export class Dummy extends BaseSchema {
     required: true,
   })
   dummy: string;
+
+  @Prop({
+    type: Object,
+  })
+  dynamicField?: Record<string, any> | undefined;
 }
 
 export type DummyDocument = THydratedDocument<Dummy>;