diff --git a/backend/src/album/dto/create-album.dto.ts b/backend/src/album/dto/create-album.dto.ts
index 95e942b..83a8d47 100644
--- a/backend/src/album/dto/create-album.dto.ts
+++ b/backend/src/album/dto/create-album.dto.ts
@@ -1,15 +1,5 @@
-import { IsNotEmpty, IsString } from 'class-validator';
-
 export class CreateAlbumDto {
-  @IsString()
-  @IsNotEmpty()
   title: string;
-
-  @IsString()
-  @IsNotEmpty()
   artist: string;
-
-  @IsString()
-  @IsNotEmpty()
   genre: string;
 }
diff --git a/backend/src/album/dto/update-album.dto.ts b/backend/src/album/dto/update-album.dto.ts
index 8b38f2e..ac795d7 100644
--- a/backend/src/album/dto/update-album.dto.ts
+++ b/backend/src/album/dto/update-album.dto.ts
@@ -1,21 +1,6 @@
-import { IsNotEmpty, IsNumber, IsString } from 'class-validator';
-
 export class UpdateAlbumDto {
-  @IsNumber()
   id: number;
-
-  @IsString()
-  @IsNotEmpty()
   title: string;
-
-  @IsString()
-  @IsNotEmpty()
   artist: string;
-
-  @IsString()
-  @IsNotEmpty()
-
-  @IsString()
-  @IsNotEmpty()
   genre: string;
 }
diff --git a/backend/src/song/dto/create-song.dto.ts b/backend/src/song/dto/create-song.dto.ts
index 3481a6c..93a2357 100644
--- a/backend/src/song/dto/create-song.dto.ts
+++ b/backend/src/song/dto/create-song.dto.ts
@@ -1,16 +1,6 @@
-import { IsNotEmpty, IsNumber, IsString } from 'class-validator';
-
 export class CreateSongDto {
-  @IsString()
-  @IsNotEmpty()
   title: string;
-
-  @IsNumber()
   duration: number;
-
-  @IsNumber()
   trackNumber: number;
-
-  @IsNumber()
   albumId: number;
 }
diff --git a/backend/src/song/dto/update-song.dto.ts b/backend/src/song/dto/update-song.dto.ts
index 25d2005..deaf54d 100644
--- a/backend/src/song/dto/update-song.dto.ts
+++ b/backend/src/song/dto/update-song.dto.ts
@@ -1,19 +1,7 @@
-import { IsNotEmpty, IsNumber, IsString } from 'class-validator';
-
 export class UpdateSongDto {
-  @IsNumber()
   id: number;
-
-  @IsString()
-  @IsNotEmpty()
   title: string;
-
-  @IsNumber()
   duration: number;
-
-  @IsNumber()
   trackNumber: number;
-
-  @IsNumber()
   albumId: number;
 }