diff --git a/simtong-domain/src/main/kotlin/team/comit/simtong/domain/file/model/EmployeeCertificate.kt b/simtong-domain/src/main/kotlin/team/comit/simtong/domain/file/model/EmployeeCertificate.kt
index bf58fa9e..da5e6a8e 100644
--- a/simtong-domain/src/main/kotlin/team/comit/simtong/domain/file/model/EmployeeCertificate.kt
+++ b/simtong-domain/src/main/kotlin/team/comit/simtong/domain/file/model/EmployeeCertificate.kt
@@ -1,5 +1,7 @@
 package team.comit.simtong.domain.file.model
 
+import team.comit.simtong.global.annotation.Aggregate
+
 /**
  *
  * EmployeeCertificate Aggregate Root를 담당하는 EmployeeCertificate
@@ -9,6 +11,7 @@ package team.comit.simtong.domain.file.model
  * @date 2022/12/06
  * @version 1.0.0
  **/
+@Aggregate
 data class EmployeeCertificate(
     val employeeNumber: Int,
 
diff --git a/simtong-domain/src/main/kotlin/team/comit/simtong/domain/holiday/model/HolidayPeriod.kt b/simtong-domain/src/main/kotlin/team/comit/simtong/domain/holiday/model/HolidayPeriod.kt
index 3d44c849..053dad17 100644
--- a/simtong-domain/src/main/kotlin/team/comit/simtong/domain/holiday/model/HolidayPeriod.kt
+++ b/simtong-domain/src/main/kotlin/team/comit/simtong/domain/holiday/model/HolidayPeriod.kt
@@ -1,5 +1,6 @@
 package team.comit.simtong.domain.holiday.model
 
+import team.comit.simtong.global.annotation.Aggregate
 import java.time.LocalDate
 import java.util.UUID
 
@@ -11,6 +12,7 @@ import java.util.UUID
  * @date 2022/12/20
  * @version 1.0.0
  **/
+@Aggregate
 data class HolidayPeriod(
     val year: Int,
 
diff --git a/simtong-domain/src/main/kotlin/team/comit/simtong/domain/notification/model/Notification.kt b/simtong-domain/src/main/kotlin/team/comit/simtong/domain/notification/model/Notification.kt
index 1ba974e6..d7b8f4fe 100644
--- a/simtong-domain/src/main/kotlin/team/comit/simtong/domain/notification/model/Notification.kt
+++ b/simtong-domain/src/main/kotlin/team/comit/simtong/domain/notification/model/Notification.kt
@@ -1,5 +1,6 @@
 package team.comit.simtong.domain.notification.model
 
+import team.comit.simtong.global.annotation.Aggregate
 import java.time.LocalDateTime
 import java.util.UUID
 
@@ -11,6 +12,7 @@ import java.util.UUID
  * @date 2022/12/29
  * @version 1.1.0
  **/
+@Aggregate
 data class Notification(
     val id: UUID = UUID(0, 0),
 
diff --git a/simtong-domain/src/main/kotlin/team/comit/simtong/domain/notification/model/NotificationReceiver.kt b/simtong-domain/src/main/kotlin/team/comit/simtong/domain/notification/model/NotificationReceiver.kt
index e926a128..31061432 100644
--- a/simtong-domain/src/main/kotlin/team/comit/simtong/domain/notification/model/NotificationReceiver.kt
+++ b/simtong-domain/src/main/kotlin/team/comit/simtong/domain/notification/model/NotificationReceiver.kt
@@ -1,5 +1,6 @@
 package team.comit.simtong.domain.notification.model
 
+import team.comit.simtong.global.annotation.Aggregate
 import java.time.LocalDateTime
 import java.util.UUID
 
@@ -11,8 +12,11 @@ import java.util.UUID
  * @date 2022/12/29
  * @version 1.1.0
  **/
+@Aggregate
 data class NotificationReceiver(
     val userId: UUID,
+
     val notificationId: UUID,
+
     val checkedAt: LocalDateTime? = null
 )