diff --git a/backend/src/main/java/kr/touroot/travelogue/service/TravelogueService.java b/backend/src/main/java/kr/touroot/travelogue/service/TravelogueService.java
index bc74a7b6..c6c4ad5b 100644
--- a/backend/src/main/java/kr/touroot/travelogue/service/TravelogueService.java
+++ b/backend/src/main/java/kr/touroot/travelogue/service/TravelogueService.java
@@ -6,9 +6,9 @@
 import kr.touroot.member.domain.Member;
 import kr.touroot.travelogue.domain.Travelogue;
 import kr.touroot.travelogue.domain.TravelogueFilterCondition;
-import kr.touroot.travelogue.dto.request.TravelogueRequest;
 import kr.touroot.travelogue.domain.search.SearchCondition;
 import kr.touroot.travelogue.domain.search.SearchType;
+import kr.touroot.travelogue.dto.request.TravelogueRequest;
 import kr.touroot.travelogue.dto.request.TravelogueSearchRequest;
 import kr.touroot.travelogue.repository.TravelogueRepository;
 import kr.touroot.travelogue.repository.query.TravelogueQueryRepository;
@@ -68,7 +68,8 @@ public Travelogue update(Long id, Member author, TravelogueRequest request) {
                 .orElseThrow(() -> new BadRequestException("존재하지 않는 여행기입니다."));
         validateAuthor(travelogue, author);
 
-        travelogue.update(request.title(), request.thumbnail());
+        String url = s3Provider.copyImageToPermanentStorage(request.thumbnail());
+        travelogue.update(request.title(), url);
 
         return travelogueRepository.save(travelogue);
     }
diff --git a/backend/src/test/java/kr/touroot/travelogue/controller/TravelogueControllerTest.java b/backend/src/test/java/kr/touroot/travelogue/controller/TravelogueControllerTest.java
index 3ca3c77f..673f007e 100644
--- a/backend/src/test/java/kr/touroot/travelogue/controller/TravelogueControllerTest.java
+++ b/backend/src/test/java/kr/touroot/travelogue/controller/TravelogueControllerTest.java
@@ -449,6 +449,9 @@ void findTraveloguesByKeywordWithoutSearchType() {
     @DisplayName("여행기를 수정한다.")
     @Test
     void updateTravelogue() throws JsonProcessingException {
+        Mockito.when(s3Provider.copyImageToPermanentStorage(any(String.class)))
+                .thenReturn(TravelogueResponseFixture.getUpdatedTravelogueResponse().thumbnail());
+
         Travelogue travelogue = testHelper.initTravelogueTestData(member);
 
         List<TravelogueDayRequest> days = getUpdateTravelogueDayRequests();
diff --git a/backend/src/test/java/kr/touroot/travelogue/service/TravelogueFacadeServiceTest.java b/backend/src/test/java/kr/touroot/travelogue/service/TravelogueFacadeServiceTest.java
index 5ca9328f..7c32c137 100644
--- a/backend/src/test/java/kr/touroot/travelogue/service/TravelogueFacadeServiceTest.java
+++ b/backend/src/test/java/kr/touroot/travelogue/service/TravelogueFacadeServiceTest.java
@@ -2,6 +2,7 @@
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.when;
 
 import java.util.List;
@@ -30,6 +31,7 @@
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.mock.mockito.MockBean;
 import org.springframework.context.annotation.Import;
@@ -204,6 +206,9 @@ void findTraveloguesByAuthorNicknameKeyword() {
     @DisplayName("여행기를 수정할 수 있다.")
     @Test
     void updateTravelogue() {
+        Mockito.when(s3Provider.copyImageToPermanentStorage(any(String.class)))
+                .thenReturn(TravelogueResponseFixture.getUpdatedTravelogueResponse().thumbnail());
+
         List<TravelogueDayRequest> days = getUpdateTravelogueDayRequests();
         saveImages(days);