diff --git a/src/dto/logistics.dto.ts b/src/dto/logistics.dto.ts
index a5e836d..fa57e60 100644
--- a/src/dto/logistics.dto.ts
+++ b/src/dto/logistics.dto.ts
@@ -21,6 +21,7 @@ export class ShipmentBookDTO {
   orderIds?: number[];
 
   @ApiProperty()
+  @Rule(RuleType.string())
   shipmentPlatform: string;
 }