diff --git a/backend/src/common/consts/index.ts b/backend/src/common/consts/index.ts
index 03e02894..6dbb6a12 100644
--- a/backend/src/common/consts/index.ts
+++ b/backend/src/common/consts/index.ts
@@ -1,3 +1,2 @@
-// Todo. 오브젝트 스토리지에 실제 이미지 저장 후 수정
 export const DEFAULT_THUMBNAIL_URL =
   'https://kr.object.ncloudstorage.com/ogil-public/post/uploads/35af1797a54a.jpg';
diff --git a/backend/src/course/entity/Course.ts b/backend/src/course/entity/Course.ts
index 0415b4f7..7b97179a 100644
--- a/backend/src/course/entity/Course.ts
+++ b/backend/src/course/entity/Course.ts
@@ -7,7 +7,6 @@ import { PlaceInCourseNotFoundException } from '@src/course/exception/PlaceInCou
 
 @Entity()
 export class Course extends BaseEntity {
-  // Todo. 오브젝트 스토리지에 실제 이미지 저장 후 수정
   public static readonly DEFAULT_THUMBNAIL_URL =
     'https://kr.object.ncloudstorage.com/ogil-public/post/uploads/35af1797a54a.jpg';
 
diff --git a/backend/src/map/entity/Map.ts b/backend/src/map/entity/Map.ts
index 17b4b6e1..64c5c6c0 100644
--- a/backend/src/map/entity/Map.ts
+++ b/backend/src/map/entity/Map.ts
@@ -7,7 +7,6 @@ import { PlaceInMapNotFoundException } from '@src/map/exception/PlaceInMapNotFou
 
 @Entity()
 export class Map extends BaseEntity {
-  // Todo. 오브젝트 스토리지에 실제 이미지 저장 후 수정
   public static readonly DEFAULT_THUMBNAIL_URL =
     'https://kr.object.ncloudstorage.com/ogil-public/post/uploads/35af1797a54a.jpg';