diff --git a/src/main/java/com/Han2m/portLogistics/user/dto/res/ResSignupDto.java b/src/main/java/com/Han2m/portLogistics/user/dto/res/ResSignupDto.java
deleted file mode 100644
index 54f570d..0000000
--- a/src/main/java/com/Han2m/portLogistics/user/dto/res/ResSignupDto.java
+++ /dev/null
@@ -1,12 +0,0 @@
-package com.Han2m.portLogistics.user.dto.res;
-
-public class ResSignupDto {
-
-    private String memberId;
-    private String password;
-
-    public ResSignupDto(String memberId, String password) {
-        this.memberId = memberId;
-        this.password = password;
-    }
-}
diff --git a/src/main/java/com/Han2m/portLogistics/user/service/GuestService.java b/src/main/java/com/Han2m/portLogistics/user/service/GuestService.java
index 1545f8f..ab37eaf 100644
--- a/src/main/java/com/Han2m/portLogistics/user/service/GuestService.java
+++ b/src/main/java/com/Han2m/portLogistics/user/service/GuestService.java
@@ -89,6 +89,7 @@ public ResGuestDto editGuestInfo(Long id, ReqGuestDto updatedReqGuestDTO) {
         return new ResGuestDto(guest);
     }
 
+    @Transactional(readOnly = true)
     public ResGuestDto getGuestById(Long id) {
 
         Guest guest = guestRepository.findById(id).orElseThrow(EntityNotFoundException::new);
@@ -103,11 +104,13 @@ public void deleteGuest(Long id) {
          }).orElseThrow(EntityNotFoundException::new);
     }
 
+    @Transactional(readOnly = true)
     public Page<ResGuestDto> getAllGuests(Pageable pageable) {
         Page<Guest> guests = guestRepository.findAll(pageable);
         return guests.map(ResGuestDto::new);
     }
 
+    @Transactional(readOnly = true)
     public List<ResGuestDto> searchGuestByName(String name) {
         List<Guest> guests = guestRepository.findByName(name);
         return guests.stream().map(ResGuestDto::new).collect(Collectors.toList());
diff --git a/src/main/java/com/Han2m/portLogistics/user/service/StatusService.java b/src/main/java/com/Han2m/portLogistics/user/service/StatusService.java
index 6fc36a4..99a7b4b 100644
--- a/src/main/java/com/Han2m/portLogistics/user/service/StatusService.java
+++ b/src/main/java/com/Han2m/portLogistics/user/service/StatusService.java
@@ -59,12 +59,13 @@ public ResStatusDto registerWorkerOut(Long id, Long wharfId){
     }
 
 
-
+    @Transactional(readOnly = true)
     public List<ResStatusDto> getAllWorkerInWharf(){
         List<Status> statuses = statusRepository.findByOutTimeIsNull();
         return statuses.stream().map(ResStatusDto::new).collect(Collectors.toList());
     }
 
+    @Transactional(readOnly = true)
     public List<ResStatusDto> getWorkerInWharf(Long wharfId){
         List<Status> statuses = statusRepository.findByOutTimeIsNullAndWharfWharfId(wharfId);
         return statuses.stream().map(ResStatusDto::new).collect(Collectors.toList());
diff --git a/src/main/java/com/Han2m/portLogistics/user/service/WorkerService.java b/src/main/java/com/Han2m/portLogistics/user/service/WorkerService.java
index adb2806..f414089 100644
--- a/src/main/java/com/Han2m/portLogistics/user/service/WorkerService.java
+++ b/src/main/java/com/Han2m/portLogistics/user/service/WorkerService.java
@@ -36,6 +36,7 @@ public class WorkerService {
 
 
     // Worker 조회
+    @Transactional(readOnly = true)
     public ResWorkerDto getWorkerById(Long id) {
 
         Worker worker = workerRepository.findById(id).orElseThrow(EntityNotFoundException::new);
@@ -123,12 +124,13 @@ public ResWorkerDto registerWorkerUrl(Worker worker, String faceUrl) {
         return new ResWorkerDto(worker);
     }
 
-
+    @Transactional(readOnly = true)
     public Page<ResWorkerDto> getAllWorkers(Pageable pageable) {
         Page<Worker> workers = workerRepository.findAll(pageable);
         return workers.map(ResWorkerDto::new);
     }
 
+    @Transactional(readOnly = true)
     public List<ResWorkerDto> searchWorkerByName(String name) {
         List<Worker> workers = workerRepository.findByName(name);
         return workers.stream().map(ResWorkerDto::new).collect(Collectors.toList());