diff --git a/src/modules/file/dto/create-file.dto.ts b/src/modules/file/dto/create-file.dto.ts
index 6e76044b1..dd9885cbd 100644
--- a/src/modules/file/dto/create-file.dto.ts
+++ b/src/modules/file/dto/create-file.dto.ts
@@ -8,6 +8,7 @@ import {
   IsString,
   IsUUID,
   MaxLength,
+  Min,
   ValidateIf,
 } from 'class-validator';
 
@@ -52,7 +53,7 @@ export class CreateFileDto {
     format: 'bigint',
     example: 123456789,
   })
-  @IsPositive()
+  @Min(0)
   @IsNumber()
   size: bigint;
 
diff --git a/src/modules/file/dto/replace-file.dto.ts b/src/modules/file/dto/replace-file.dto.ts
index 23f354d05..a00ed1aa0 100644
--- a/src/modules/file/dto/replace-file.dto.ts
+++ b/src/modules/file/dto/replace-file.dto.ts
@@ -28,7 +28,7 @@ export class ReplaceFileDto {
     example: '3005',
     description: 'New file size',
   })
-  @IsPositive()
+  @Min(0)
   @IsNumber()
   size: bigint;