diff --git a/src/users/dto/update-user.dto.ts b/src/users/dto/update-user.dto.ts
index 42a1fb5..8243a52 100644
--- a/src/users/dto/update-user.dto.ts
+++ b/src/users/dto/update-user.dto.ts
@@ -4,11 +4,6 @@ import { ResponseCode } from 'src/base.dto';
 import { Gender, User } from '../models/user.model';
 
 export class UpdateUserDto {
-  @IsString({ message: '用户ID必须是字符串' })
-  @IsNotEmpty({ message: '用户ID不能为空' })
-  @ApiProperty({ description: '用户ID', example: '123' })
-  userId: string;
-
   @IsString({ message: '用户名必须是字符串' })
   @MinLength(1, { message: '用户名长度不能少于1个字符' })
   @IsOptional()
diff --git a/src/users/users.controller.ts b/src/users/users.controller.ts
index 7cc9b02..3007b95 100644
--- a/src/users/users.controller.ts
+++ b/src/users/users.controller.ts
@@ -76,8 +76,8 @@ export class UsersController {
   // 更新用户昵称、头像
   @UseGuards(JwtAuthGuard)
   @Put('update')
-  async updateUser(@Body() updateUserDto: UpdateUserDto): Promise<UpdateUserResponseDto> {
-    return this.usersService.updateUser(updateUserDto);
+  async updateUser(@Body() updateUserDto: UpdateUserDto, @CurrentUser() user: AccessTokenPayload): Promise<UpdateUserResponseDto> {
+    return this.usersService.updateUser(updateUserDto, user.sub);
   }
 
   // Apple 登录
diff --git a/src/users/users.service.ts b/src/users/users.service.ts
index afabb8b..9b5d94b 100644
--- a/src/users/users.service.ts
+++ b/src/users/users.service.ts
@@ -180,8 +180,8 @@ export class UsersService {
 
 
   // 更新用户昵称、头像
-  async updateUser(updateUserDto: UpdateUserDto): Promise<UpdateUserResponseDto> {
-    const { userId, name, avatar, gender, birthDate, dailyStepsGoal, dailyCaloriesGoal, pilatesPurposes, weight, initialWeight, targetWeight, height, activityLevel } = updateUserDto;
+  async updateUser(updateUserDto: UpdateUserDto, userId: string): Promise<UpdateUserResponseDto> {
+    const { name, avatar, gender, birthDate, dailyStepsGoal, dailyCaloriesGoal, pilatesPurposes, weight, initialWeight, targetWeight, height, activityLevel } = updateUserDto;
 
     this.logger.log(`updateUser: ${JSON.stringify(updateUserDto, null, 2)}`);