diff --git a/resource-server/src/main/java/com/inhabas/api/domain/contest/repository/ContestBoardRepositoryImpl.java b/resource-server/src/main/java/com/inhabas/api/domain/contest/repository/ContestBoardRepositoryImpl.java
index 1a2fc733..d4174cec 100644
--- a/resource-server/src/main/java/com/inhabas/api/domain/contest/repository/ContestBoardRepositoryImpl.java
+++ b/resource-server/src/main/java/com/inhabas/api/domain/contest/repository/ContestBoardRepositoryImpl.java
@@ -1,20 +1,18 @@
 package com.inhabas.api.domain.contest.repository;
 
-import static com.inhabas.api.domain.contest.domain.QContestBoard.contestBoard;
-
+import com.inhabas.api.domain.contest.domain.QContestBoard;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
+
 import java.util.Map;
 import java.util.function.BiFunction;
-
 import lombok.RequiredArgsConstructor;
 
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.domain.Sort;
 
 import com.inhabas.api.domain.contest.domain.ContestBoard;
-import com.inhabas.api.domain.contest.domain.QContestBoard;
 import com.inhabas.api.domain.contest.domain.valueObject.ContestType;
 import com.querydsl.core.types.Order;
 import com.querydsl.core.types.OrderSpecifier;
@@ -29,16 +27,12 @@ public class ContestBoardRepositoryImpl implements ContestBoardRepositoryCustom
   private QContestBoard contestBoard = QContestBoard.contestBoard;
 
   // 필드 이름과 정렬 기준을 매핑
-  private OrderSpecifier<?> getSortedColumn(
-      Order order, QContestBoard contestBoard, String fieldName) {
-    Map<String, BiFunction<Order, QContestBoard, OrderSpecifier<?>>> orderSpecifierMap =
-        new HashMap<>();
+  private OrderSpecifier<?> getSortedColumn(Order order, QContestBoard contestBoard, String fieldName) {
+    Map<String, BiFunction<Order, QContestBoard, OrderSpecifier<?>>> orderSpecifierMap = new HashMap<>();
     orderSpecifierMap.put("id", (o, cb) -> new OrderSpecifier<>(o, cb.id));
     orderSpecifierMap.put("dateContestEnd", (o, cb) -> new OrderSpecifier<>(o, cb.dateContestEnd));
 
-    return orderSpecifierMap
-        .getOrDefault(fieldName, (o, cb) -> new OrderSpecifier<>(Order.DESC, cb.dateContestEnd))
-        .apply(order, contestBoard);
+    return orderSpecifierMap.getOrDefault(fieldName, (o, cb) -> new OrderSpecifier<>(Order.DESC, cb.dateContestEnd)).apply(order, contestBoard);
   }
 
   // 페이지 요청에 따른 정렬
@@ -47,8 +41,7 @@ public List<OrderSpecifier<?>> getAllOrderSpecifiers(Pageable pageable) {
     if (pageable.getSort() != null) {
       for (Sort.Order order : pageable.getSort()) {
         Order direction = order.getDirection().isAscending() ? Order.ASC : Order.DESC;
-        OrderSpecifier<?> orderSpecifier =
-            getSortedColumn(direction, contestBoard, order.getProperty());
+        OrderSpecifier<?> orderSpecifier = getSortedColumn(direction, contestBoard, order.getProperty());
         orders.add(orderSpecifier);
       }
     } else {
diff --git a/resource-server/src/main/java/com/inhabas/api/domain/contest/usecase/ContestBoardServiceImpl.java b/resource-server/src/main/java/com/inhabas/api/domain/contest/usecase/ContestBoardServiceImpl.java
index 040989bd..2492df57 100644
--- a/resource-server/src/main/java/com/inhabas/api/domain/contest/usecase/ContestBoardServiceImpl.java
+++ b/resource-server/src/main/java/com/inhabas/api/domain/contest/usecase/ContestBoardServiceImpl.java
@@ -36,8 +36,6 @@ public class ContestBoardServiceImpl implements ContestBoardService {
 
   private final ContestBoardRepository contestBoardRepository;
 
-  private final ContestFieldRepository contestFieldRepository;
-
   private final BoardSecurityChecker boardSecurityChecker;
 
   private final MemberRepository memberRepository;
@@ -67,6 +65,7 @@ public List<ContestBoardDto> getContestBoardsByType(
     return contestBoardList.stream()
         .map(
             contestBoard -> {
+              //첨부파일들 중 첫번째 이미지 = 썸네일
               FileDownloadDto thumbnail =
                   contestBoard.getFiles().stream()
                       .filter(file -> isImageFile(file.getName()))