diff --git a/src/main/java/com/ikdaman/domain/mybook/model/MyBookReq.java b/src/main/java/com/ikdaman/domain/mybook/model/MyBookReq.java
index 20af2b3..a47a4fb 100644
--- a/src/main/java/com/ikdaman/domain/mybook/model/MyBookReq.java
+++ b/src/main/java/com/ikdaman/domain/mybook/model/MyBookReq.java
@@ -24,7 +24,7 @@ public class MyBookReq {
     private String isbn;
     private int page;
     private String coverImage;
-    @Size(min = 1, max = 500)
+    @Size(max = 500)
     private String impression;
     private String createdAt;