diff --git a/src/main/java/Ness/Backend/domain/bookmark/dto/response/GetBookmarkDto.java b/src/main/java/Ness/Backend/domain/bookmark/dto/response/GetBookmarkDto.java
index 199d44e..0742762 100644
--- a/src/main/java/Ness/Backend/domain/bookmark/dto/response/GetBookmarkDto.java
+++ b/src/main/java/Ness/Backend/domain/bookmark/dto/response/GetBookmarkDto.java
@@ -1,9 +1,7 @@
 package Ness.Backend.domain.bookmark.dto.response;
 
-import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
-import lombok.NoArgsConstructor;
 
 import java.time.ZonedDateTime;
 
diff --git a/src/main/java/Ness/Backend/domain/bookmark/dto/response/GetBookmarkListDto.java b/src/main/java/Ness/Backend/domain/bookmark/dto/response/GetBookmarkListDto.java
index d2a56b6..fd6e682 100644
--- a/src/main/java/Ness/Backend/domain/bookmark/dto/response/GetBookmarkListDto.java
+++ b/src/main/java/Ness/Backend/domain/bookmark/dto/response/GetBookmarkListDto.java
@@ -1,6 +1,5 @@
 package Ness.Backend.domain.bookmark.dto.response;
 
-import Ness.Backend.domain.chat.dto.response.GetChatDto;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
diff --git a/src/main/java/Ness/Backend/domain/chat/ChatService.java b/src/main/java/Ness/Backend/domain/chat/ChatService.java
index 009fe35..eb133d5 100644
--- a/src/main/java/Ness/Backend/domain/chat/ChatService.java
+++ b/src/main/java/Ness/Backend/domain/chat/ChatService.java
@@ -21,7 +21,6 @@
 
 import java.time.LocalDateTime;
 import java.time.ZoneId;
-import java.time.ZonedDateTime;
 import java.util.List;
 
 @Service