diff --git a/src/main/java/com/example/building/dto/CreateOrderRequest.java b/src/main/java/com/example/building/dto/CreateOrderRequest.java
index a32e8f2..66f58e9 100644
--- a/src/main/java/com/example/building/dto/CreateOrderRequest.java
+++ b/src/main/java/com/example/building/dto/CreateOrderRequest.java
@@ -2,6 +2,7 @@ package com.example.building.dto;
 
 import lombok.Data;
 
+import javax.validation.constraints.NotBlank;
 import javax.validation.constraints.NotEmpty;
 import javax.validation.constraints.NotNull;
 import java.math.BigDecimal;