diff --git a/src/main/java/com/umc/mada/timetable/service/TimetableService.java b/src/main/java/com/umc/mada/timetable/service/TimetableService.java
index a363621..bd4b7df 100644
--- a/src/main/java/com/umc/mada/timetable/service/TimetableService.java
+++ b/src/main/java/com/umc/mada/timetable/service/TimetableService.java
@@ -48,7 +48,7 @@ public TimetableService(UserRepository userRepository, TimetableRepository timet
         this.calendarRepository = calendarRepository;
         this.repeatTodoRepository = repeatTodoRepository;
     }
-
+    @Transactional
     // 시간표 일정 생성 로직
     public TimetableResponseDto createTimetable(User user, TimetableRequestDto timetableRequestDto){
         // 유효성 검사 메서드를 호출하여 해당 ID가 데이터베이스에 존재하는지 확인
@@ -211,7 +211,7 @@ public List<TimetableResponseDto> getWeeklyTimetable(User userId) {
 //            checkAndLoadDailyData(user, today);
 //        }
 //    }
-
+    @Transactional
     // 주간 시간표의 일정을 기반으로 한 일일 시간표 생성 메서드
     public Map<String, Object> checkAndLoadDailyData(User user, LocalDate date) {
         java.time.DayOfWeek dayOfWeek = date.getDayOfWeek();
@@ -261,7 +261,7 @@ public Map<String, Object> checkAndLoadDailyData(User user, LocalDate date) {
         result.put("data",data);
         return result;
     }
-
+    @Transactional
     // comment 생성 로직
     public CommentResponseDto createComment(User user, CommentRequestDto commentRequestDto){
         validateUserId(user);