diff --git a/src/core/utils/index.ts b/src/core/utils/index.ts
index 6d80059..67d3af4 100644
--- a/src/core/utils/index.ts
+++ b/src/core/utils/index.ts
@@ -1,3 +1,4 @@
-export * from './response.factory.util';
-export * from './i18n-context-wrapper.util';
 export * from './class-validator-formatter.util';
+export * from './i18n-context-wrapper.util';
+export * from './patch.util';
+export * from './response.factory.util';
diff --git a/src/core/utils/patch.util.ts b/src/core/utils/patch.util.ts
new file mode 100644
index 0000000..2ba313f
--- /dev/null
+++ b/src/core/utils/patch.util.ts
@@ -0,0 +1,3 @@
+export const setIf = <T, K extends keyof T>(obj: T, key: K, val: T[K] | undefined) => {
+  if (typeof val !== 'undefined') obj[key] = val as T[K];
+};
diff --git a/src/customer/entities/customer.entity.ts b/src/customer/entities/customer.entity.ts
index c1b2875..e675a4a 100644
--- a/src/customer/entities/customer.entity.ts
+++ b/src/customer/entities/customer.entity.ts
@@ -15,7 +15,7 @@ import { CountryIso } from '~/common/enums';
 import { Guardian } from '~/guardian/entities/guradian.entity';
 import { Junior } from '~/junior/entities';
 import { User } from '~/user/entities';
-import { CustomerStatus, KycStatus } from '../enums';
+import { CustomerStatus, Gender, KycStatus } from '../enums';
 
 @Entity('customers')
 export class Customer extends BaseEntity {
@@ -62,7 +62,7 @@ export class Customer extends BaseEntity {
   isPep!: boolean;
 
   @Column('varchar', { length: 255, nullable: true, name: 'gender' })
-  gender!: string;
+  gender!: Gender;
 
   @Column('boolean', { default: false, name: 'is_junior' })
   isJunior!: boolean;
diff --git a/src/i18n/ar/app.json b/src/i18n/ar/app.json
index 7c5bcb4..411141d 100644
--- a/src/i18n/ar/app.json
+++ b/src/i18n/ar/app.json
@@ -67,7 +67,8 @@
     "NOT_FOUND": "لم يتم العثور على الطفل.",
     "CIVIL_ID_REQUIRED": "مطلوب بطاقة الهوية المدنية.",
     "CIVIL_ID_NOT_CREATED_BY_GUARDIAN": "تم تحميل بطاقة الهوية المدنية من قبل شخص آخر غير ولي الأمر.",
-    "CIVIL_ID_ALREADY_EXISTS": "بطاقة الهوية المدنية مستخدمة بالفعل من قبل طفل آخر."
+    "CIVIL_ID_ALREADY_EXISTS": "بطاقة الهوية المدنية مستخدمة بالفعل من قبل طفل آخر.",
+    "CANNOT_UPDATE_REGISTERED_USER": "الطفل قد سجل بالفعل. لا يُسمح بتحديث البيانات."
   },
 
   "MONEY_REQUEST": {
diff --git a/src/i18n/en/app.json b/src/i18n/en/app.json
index f6e5278..b6c4ccb 100644
--- a/src/i18n/en/app.json
+++ b/src/i18n/en/app.json
@@ -66,7 +66,8 @@
     "NOT_FOUND": "The junior was not found.",
     "CIVIL_ID_REQUIRED": "Civil ID is required.",
     "CIVIL_ID_NOT_CREATED_BY_GUARDIAN": "The civil ID document was not uploaded by the guardian.",
-    "CIVIL_ID_ALREADY_EXISTS": "The civil ID is already used by another junior."
+    "CIVIL_ID_ALREADY_EXISTS": "The civil ID is already used by another junior.",
+    "CANNOT_UPDATE_REGISTERED_USER": "The junior has already registered. Updating details is not allowed."
   },
 
   "MONEY_REQUEST": {
diff --git a/src/junior/dtos/request/update-junior.request.dto.ts b/src/junior/dtos/request/update-junior.request.dto.ts
index c9054b3..be9457b 100644
--- a/src/junior/dtos/request/update-junior.request.dto.ts
+++ b/src/junior/dtos/request/update-junior.request.dto.ts
@@ -1,6 +1,5 @@
-import { OmitType, PartialType } from '@nestjs/mapped-types';
+import { OmitType, PartialType } from '@nestjs/swagger';
 import { CreateJuniorRequestDto } from './create-junior.request.dto';
 
-export class UpdateJuniorRequestDto extends PartialType(
-  OmitType(CreateJuniorRequestDto, ['cardColor', 'cardPin'] as const),
-) {}
+const omitted = OmitType(CreateJuniorRequestDto, ['cardColor', 'cardPin']);
+export class UpdateJuniorRequestDto extends PartialType(omitted) {}
diff --git a/src/junior/dtos/response/junior.response.dto.ts b/src/junior/dtos/response/junior.response.dto.ts
index 52ea9a1..5a0436c 100644
--- a/src/junior/dtos/response/junior.response.dto.ts
+++ b/src/junior/dtos/response/junior.response.dto.ts
@@ -1,7 +1,8 @@
 import { ApiProperty } from '@nestjs/swagger';
+import { Gender } from '~/customer/enums';
 import { DocumentMetaResponseDto } from '~/document/dtos/response';
 import { Junior } from '~/junior/entities';
-import { Relationship } from '~/junior/enums';
+import { GuardianRelationship, Relationship } from '~/junior/enums';
 
 export class JuniorResponseDto {
   @ApiProperty({ example: 'id' })
@@ -16,9 +17,18 @@ export class JuniorResponseDto {
   @ApiProperty({ example: 'test@junior.com' })
   email!: string;
 
+  @ApiProperty({ example: Gender.MALE })
+  gender!: Gender;
+
+  @ApiProperty({ example: '2000-01-01' })
+  dateOfBirth!: Date;
+
   @ApiProperty({ enum: Relationship })
   relationship!: Relationship;
 
+  @ApiProperty({ enum: GuardianRelationship })
+  guardianRelationship!: GuardianRelationship;
+
   @ApiProperty({ type: DocumentMetaResponseDto })
   profilePicture!: DocumentMetaResponseDto | null;
 
@@ -27,7 +37,10 @@ export class JuniorResponseDto {
     this.firstName = junior.customer.firstName;
     this.lastName = junior.customer.lastName;
     this.email = junior.customer.user.email;
+    this.gender = junior.customer.gender;
+    this.dateOfBirth = junior.customer.dateOfBirth;
     this.relationship = junior.relationship;
+    this.guardianRelationship = GuardianRelationship[junior.relationship];
     this.profilePicture = junior.customer.user.profilePicture
       ? new DocumentMetaResponseDto(junior.customer.user.profilePicture)
       : null;
diff --git a/src/junior/services/junior.service.ts b/src/junior/services/junior.service.ts
index 24432fd..63f5593 100644
--- a/src/junior/services/junior.service.ts
+++ b/src/junior/services/junior.service.ts
@@ -4,6 +4,7 @@ import { Roles } from '~/auth/enums';
 import { CardService } from '~/card/services';
 import { NeoLeapService } from '~/common/modules/neoleap/services';
 import { PageOptionsRequestDto } from '~/core/dtos';
+import { setIf } from '~/core/utils';
 import { CustomerService } from '~/customer/services';
 import { DocumentService, OciService } from '~/document/services';
 import { UserType } from '~/user/enums';
@@ -88,17 +89,14 @@ export class JuniorService {
   async updateJunior(juniorId: string, body: UpdateJuniorRequestDto, guardianId: string) {
     this.logger.log(`Updating junior ${juniorId}`);
     const junior = await this.findJuniorById(juniorId, false, guardianId);
-    if (body.profilePictureId) {
-      junior.customer.user.profilePictureId = body.profilePictureId;
-    }
-    if (body.firstName) {
-      junior.customer.user.firstName = body.firstName;
-      junior.customer.firstName = body.firstName;
-    }
-    if (body.lastName) {
-      junior.customer.user.lastName = body.lastName;
-      junior.customer.lastName = body.lastName;
+    const customer = junior.customer;
+    const user = customer.user;
+
+    if (user.password) {
+      this.logger.error(`Cannot update junior ${juniorId} with registered user`);
+      throw new BadRequestException('JUNIOR.CANNOT_UPDATE_REGISTERED_USER');
     }
+
     if (body.email) {
       const existingUser = await this.userService.findUser({ email: body.email });
       if (existingUser && existingUser.id !== junior.customer.user.id) {
@@ -107,16 +105,16 @@ export class JuniorService {
       }
       junior.customer.user.email = body.email;
     }
+    setIf(user, 'profilePictureId', body.profilePictureId);
+    setIf(user, 'firstName', body.firstName);
+    setIf(user, 'lastName', body.lastName);
 
-    if (body.dateOfBirth) {
-      junior.customer.dateOfBirth = body.dateOfBirth;
-    }
-    if (body.relationship) {
-      junior.relationship = body.relationship;
-    }
-    console.log('++++++');
+    setIf(customer, 'firstName', body.firstName);
+    setIf(customer, 'lastName', body.lastName);
+    setIf(customer, 'dateOfBirth', body.dateOfBirth as unknown as Date);
 
-    await Promise.all([junior.save(), junior.customer.user.save(), junior.customer.save()]);
+    setIf(junior, 'relationship', body.relationship);
+    await Promise.all([junior.save(), customer.save(), user.save()]);
     this.logger.log(`Junior ${juniorId} updated successfully`);
     return junior;
   }