diff --git a/src/main/java/gymmi/workspace/request/VoteRequest.java b/src/main/java/gymmi/workspace/request/VoteRequest.java
index eeb0925..83e929b 100644
--- a/src/main/java/gymmi/workspace/request/VoteRequest.java
+++ b/src/main/java/gymmi/workspace/request/VoteRequest.java
@@ -1,6 +1,7 @@
 package gymmi.workspace.request;
 
 import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
@@ -8,7 +9,7 @@
 @NoArgsConstructor
 public class VoteRequest {
 
-    @NotBlank
+    @NotNull
     private Boolean willApprove;
 
     public VoteRequest(Boolean willApprove) {