diff --git a/hous-api/src/main/java/hous/api/service/rule/RuleService.java b/hous-api/src/main/java/hous/api/service/rule/RuleService.java
index 18ada37..2100ccf 100644
--- a/hous-api/src/main/java/hous/api/service/rule/RuleService.java
+++ b/hous-api/src/main/java/hous/api/service/rule/RuleService.java
@@ -30,6 +30,7 @@
 import hous.api.service.rule.dto.request.UpdateRuleRequestDto;
 import hous.api.service.rule.dto.response.RuleInfo;
 import hous.api.service.user.UserServiceUtils;
+import hous.common.constant.Constraint;
 import hous.common.exception.ConflictException;
 import hous.common.exception.ForbiddenException;
 import hous.common.type.FileType;
@@ -225,7 +226,7 @@ public void updateRepresentRule(UpdateRuleRepresentRequestDto request, Long user
 		Room room = RoomServiceUtils.findParticipatingRoom(user);
 
 		Set<Long> ruleIds = new HashSet<>(request.getRules());
-		if (ruleIds.size() > 3) {
+		if (ruleIds.size() > Constraint.RULE_REPRESENT_MAX) {
 			throw new ForbiddenException(String.format("방 (%s) 의 대표 rule 는 3 개를 초과할 수 없습니다.", room.getId()),
 				FORBIDDEN_REPRESENT_RULE_COUNT_EXCEPTION);
 		}