diff --git a/src/main/java/com/interplug/qcast/biz/master/dto/quotation/ApiQuotationItemRackRequest.java b/src/main/java/com/interplug/qcast/biz/master/dto/quotation/ApiQuotationItemRackRequest.java
index 1e869090..9a6e310c 100644
--- a/src/main/java/com/interplug/qcast/biz/master/dto/quotation/ApiQuotationItemRackRequest.java
+++ b/src/main/java/com/interplug/qcast/biz/master/dto/quotation/ApiQuotationItemRackRequest.java
@@ -19,7 +19,7 @@ public class ApiQuotationItemRackRequest {
 
   @Schema(description = "랙 단 수")
   @NotNull
-  public Double rackRows;
+  public String rackRows;
 
   @Schema(description = "랙 지지금구 수")
   @NotNull