diff --git a/src/main/java/com/siliconvalley/domain/canvas/service/CanvasUpdateService.java b/src/main/java/com/siliconvalley/domain/canvas/service/CanvasUpdateService.java
index da4d0cb..8b03074 100644
--- a/src/main/java/com/siliconvalley/domain/canvas/service/CanvasUpdateService.java
+++ b/src/main/java/com/siliconvalley/domain/canvas/service/CanvasUpdateService.java
@@ -1,6 +1,7 @@
 package com.siliconvalley.domain.canvas.service;
 
 import com.siliconvalley.domain.canvas.domain.Canvas;
+import com.siliconvalley.domain.canvas.dto.CanvasConvertResponse;
 import com.siliconvalley.domain.image.service.S3ImageUploadService;
 import com.siliconvalley.domain.post.service.RankCachingService;
 import com.siliconvalley.domain.rabbitMQ.code.RabbitMQCode;
@@ -27,7 +28,6 @@ public Response updateSketchAndCanvas(Canvas canvas, String newSketch, Long prof
         s3ImageUploadService.deleteImage(canvas.getSketch());
         canvas.updateSketch(newSketch);
         convertRequestSender.sendSketchConversionRequest(newSketch, canvas.getId(), profileId, canvas.getSubject());
-        return Response.of(RabbitMQCode.CONVERSION_RESPONSE_SUCCESS, rankCachingService.getTopPostThisWeek(canvas.getSubject().getId()));
+        return Response.of(RabbitMQCode.CONVERSION_RESPONSE_SUCCESS, new CanvasConvertResponse(canvas.getId(), rankCachingService.getTopPostThisWeek(canvas.getSubject().getId())));
     }
-
 }
diff --git a/src/main/java/com/siliconvalley/domain/post/service/RankCachingService.java b/src/main/java/com/siliconvalley/domain/post/service/RankCachingService.java
index 6f0b8b1..c65349b 100644
--- a/src/main/java/com/siliconvalley/domain/post/service/RankCachingService.java
+++ b/src/main/java/com/siliconvalley/domain/post/service/RankCachingService.java
@@ -38,7 +38,7 @@ public void cachingRankToRedis(RankingCachingDto rankingCachingDto){
     public String getTopPostThisWeek(Long subjectId){
         RankingCachingDto rankingCachingDto = redisTemplate.opsForList().index(generateRedisKey(subjectId), -1);
         if (rankingCachingDto.getRankerList().isEmpty()){
-            return "ranking is empty";
+            return null;
         }
         return rankingCachingDto.getRankerList().get(0).getCanvasUrl();
     }