diff --git a/src/main/java/com/fc/shimpyo_be/domain/reservation/constant/ReservationValidationConstants.java b/src/main/java/com/fc/shimpyo_be/domain/reservation/constant/ReservationValidationConstants.java
index 5f93cf6..98d0750 100644
--- a/src/main/java/com/fc/shimpyo_be/domain/reservation/constant/ReservationValidationConstants.java
+++ b/src/main/java/com/fc/shimpyo_be/domain/reservation/constant/ReservationValidationConstants.java
@@ -8,9 +8,9 @@ public class ReservationValidationConstants {
 
     // regex
     public static final String DATE_REGEX = "^\\d{4}-\\d{2}-\\d{2}$";
-    public static final Integer RESERVATION_REQ_MIN_SIZE = 1;
-    public static final Integer RESERVATION_REQ_MAX_SIZE = 3;
-    public static final Integer TOTAL_PRICE_MIN_VALUE = 0;
+    public static final int RESERVATION_REQ_MIN_SIZE = 1;
+    public static final int RESERVATION_REQ_MAX_SIZE = 3;
+    public static final int TOTAL_PRICE_MIN_VALUE = 0;
 
     // validation message
     public static final String DATE_PATTERN_MESSAGE = "올바른 날짜 형식이 아닙니다.(yyyy-MM-dd 형식으로 입력하세요.)";
diff --git a/src/main/java/com/fc/shimpyo_be/domain/reservation/controller/ReservationRestController.java b/src/main/java/com/fc/shimpyo_be/domain/reservation/controller/ReservationRestController.java
index 150af73..fbce2b0 100644
--- a/src/main/java/com/fc/shimpyo_be/domain/reservation/controller/ReservationRestController.java
+++ b/src/main/java/com/fc/shimpyo_be/domain/reservation/controller/ReservationRestController.java
@@ -32,8 +32,8 @@ public class ReservationRestController {
     private final PreoccupyRoomsLockFacade preoccupyRoomsLockFacade;
     private final ReservationLockFacade reservationLockFacade;
     private final SecurityUtil securityUtil;
-    private static final Integer PAGE_SIZE = 10;
-    private static final Integer PAGE_NUM = 0;
+    private static final int PAGE_SIZE = 10;
+    private static final int PAGE_NUM = 0;
     private static final String PAGE_SORT_BY = "id";
 
     @PostMapping
diff --git a/src/main/java/com/fc/shimpyo_be/domain/reservation/dto/request/ReleaseRoomItemRequestDto.java b/src/main/java/com/fc/shimpyo_be/domain/reservation/dto/request/ReleaseRoomItemRequestDto.java
index 237cd05..46c2d3d 100644
--- a/src/main/java/com/fc/shimpyo_be/domain/reservation/dto/request/ReleaseRoomItemRequestDto.java
+++ b/src/main/java/com/fc/shimpyo_be/domain/reservation/dto/request/ReleaseRoomItemRequestDto.java
@@ -10,9 +10,9 @@
 public record ReleaseRoomItemRequestDto(
     @NotNull
     Long roomId,
-    @Pattern(regexp = DATE_REGEX, message = "올바른 날짜 형식이 아닙니다.(yyyy-MM-dd 형식으로 입력하세요.)")
+    @Pattern(regexp = DATE_REGEX, message = DATE_PATTERN_MESSAGE)
     String startDate,
-    @Pattern(regexp = DATE_REGEX, message = "올바른 날짜 형식이 아닙니다.(yyyy-MM-dd 형식으로 입력하세요.)")
+    @Pattern(regexp = DATE_REGEX, message = DATE_PATTERN_MESSAGE)
     String endDate
 ) {
 }