diff --git a/src/main/java/com/gdg/backend/domain/operation/dto/OperationRequestDto.java b/src/main/java/com/gdg/backend/domain/operation/dto/OperationRequestDto.java
index 1d85a7b..c37f9e1 100644
--- a/src/main/java/com/gdg/backend/domain/operation/dto/OperationRequestDto.java
+++ b/src/main/java/com/gdg/backend/domain/operation/dto/OperationRequestDto.java
@@ -21,7 +21,7 @@ public class OperationRequestDto {
 
     Integer deleteLength;
 
-    @NotNull(message = "position은 null일 수 없습니다.")
+//    @NotNull(message = "position은 null일 수 없습니다.")
     Long position;
 
     Long baseVersion;
diff --git a/src/main/java/com/gdg/backend/domain/operation/service/OperationQueueProcessor.java b/src/main/java/com/gdg/backend/domain/operation/service/OperationQueueProcessor.java
index 6d03294..263aba1 100644
--- a/src/main/java/com/gdg/backend/domain/operation/service/OperationQueueProcessor.java
+++ b/src/main/java/com/gdg/backend/domain/operation/service/OperationQueueProcessor.java
@@ -134,6 +134,9 @@ public void processOperation(OperationRequestDto operation) {
             template.convertAndSend("/sub/edit/" + docId, docContent);
             return;
         }
+        
+        // 추후 수정
+        if(opPosition == null) throw new IllegalStateException("opPosition은 null일 수 없습니다.");
 
         // operation 충돌 시 변환 처리
         // - operation의 baseVersion과 서버가 추적하는 version을 비교