diff --git a/packages/shared/src/auth/auth.dto.ts b/packages/shared/src/auth/auth.dto.ts
index 74d92e78e..3f1252c9a 100644
--- a/packages/shared/src/auth/auth.dto.ts
+++ b/packages/shared/src/auth/auth.dto.ts
@@ -86,6 +86,7 @@ export class VerifyConfirmEmailAuthQuery {
 
   @ApiProperty()
   @IsNumber()
+  @Transform(({ value }) => +value)
   user_id: number;
 }