diff --git a/notification-domain/src/main/kotlin/io/github/v1servicenotification/detail/service/NotificationDetailApiImpl.kt b/notification-domain/src/main/kotlin/io/github/v1servicenotification/detail/service/NotificationDetailApiImpl.kt
index ac10d54..87573bd 100644
--- a/notification-domain/src/main/kotlin/io/github/v1servicenotification/detail/service/NotificationDetailApiImpl.kt
+++ b/notification-domain/src/main/kotlin/io/github/v1servicenotification/detail/service/NotificationDetailApiImpl.kt
@@ -91,7 +91,7 @@ class NotificationDetailApiImpl(
     override fun queryNotificationDetail(userId: UUID): DetailResponse {
         postDetailRepositorySpi.updateAllDetailByUserIdAndIsReadFalse(userId)
         return DetailResponse(
-            queryDetailRepositorySpi.findAllByUserId(userId)
+            queryDetailRepositorySpi.findAllByUserIdOrderBySentAtDesc(userId)
                 .map {
                     DetailElement(
                         id = it.id,
diff --git a/notification-domain/src/main/kotlin/io/github/v1servicenotification/detail/spi/QueryDetailRepositorySpi.kt b/notification-domain/src/main/kotlin/io/github/v1servicenotification/detail/spi/QueryDetailRepositorySpi.kt
index fdb1cdb..f6c849f 100644
--- a/notification-domain/src/main/kotlin/io/github/v1servicenotification/detail/spi/QueryDetailRepositorySpi.kt
+++ b/notification-domain/src/main/kotlin/io/github/v1servicenotification/detail/spi/QueryDetailRepositorySpi.kt
@@ -6,6 +6,6 @@ import java.util.UUID
 
 @Spi
 interface QueryDetailRepositorySpi {
-    fun findAllByUserId(userId: UUID): List<TopicDetailModel>
+    fun findAllByUserIdOrderBySentAtDesc(userId: UUID): List<TopicDetailModel>
     fun findAllByUseridAndIsReadFalse(userId: UUID): Int
 }
diff --git a/notification-domain/src/main/kotlin/io/github/v1servicenotification/stubs/InMemoryDetailRepository.kt b/notification-domain/src/main/kotlin/io/github/v1servicenotification/stubs/InMemoryDetailRepository.kt
index 6236274..0d1617b 100644
--- a/notification-domain/src/main/kotlin/io/github/v1servicenotification/stubs/InMemoryDetailRepository.kt
+++ b/notification-domain/src/main/kotlin/io/github/v1servicenotification/stubs/InMemoryDetailRepository.kt
@@ -21,7 +21,7 @@ class InMemoryDetailRepository(
         detailMap[detail.id] = detail
     }
 
-    override fun findAllByUserId(userId: UUID): List<TopicDetailModel> {
+    override fun findAllByUserIdOrderBySentAtDesc(userId: UUID): List<TopicDetailModel> {
         return detailMap.filter { it.value.userId == userId }
             .map {
                 val category = categoryMap[it.value.categoryId]
@@ -35,7 +35,7 @@ class InMemoryDetailRepository(
                     it.value.userId,
                     category.topic,
                 )
-            }
+            }.sortedByDescending { it.sentAt }
     }
 
     override fun findAllByUseridAndIsReadFalse(userId: UUID): Int {
diff --git a/notification-domain/src/test/kotlin/io/github/v1servicenotification/detail/DetailApiImplTest.kt b/notification-domain/src/test/kotlin/io/github/v1servicenotification/detail/DetailApiImplTest.kt
index d80723d..2c3c6f4 100644
--- a/notification-domain/src/test/kotlin/io/github/v1servicenotification/detail/DetailApiImplTest.kt
+++ b/notification-domain/src/test/kotlin/io/github/v1servicenotification/detail/DetailApiImplTest.kt
@@ -75,9 +75,9 @@ class DetailApiImplTest {
 
         detailApi.postGroupNotification(category.topic, content, threadId)
 
-        assertThat(detailSpi.findAllByUserId(userId).size).isEqualTo(1)
+        assertThat(detailSpi.findAllByUserIdOrderBySentAtDesc(userId).size).isEqualTo(1)
 
-        detailSpi.findAllByUserId(userId)
+        detailSpi.findAllByUserIdOrderBySentAtDesc(userId)
             .forEach {
                 assertThat(it.title).isEqualTo(title)
                 assertThat(it.content).isEqualTo(content)
@@ -110,7 +110,7 @@ class DetailApiImplTest {
 
         detailApi.postGroupNotification(category.topic, content, threadId)
 
-        detailSpi.findAllByUserId(userId)
+        detailSpi.findAllByUserIdOrderBySentAtDesc(userId)
             .forEach {
                 assertThat(it.title).isEqualTo(title)
                 assertThat(it.content).isEqualTo(content)
@@ -143,7 +143,7 @@ class DetailApiImplTest {
 
         detailApi.postGroupNotification(category.topic, content, threadId)
 
-        detailSpi.findAllByUserId(userId)
+        detailSpi.findAllByUserIdOrderBySentAtDesc(userId)
             .forEach {
                 assertThat(it.title).isEqualTo(title)
                 assertThat(it.content).isEqualTo(content)
@@ -181,7 +181,7 @@ class DetailApiImplTest {
 
         detailApi.postNotification(userId, category.topic, content, threadId)
 
-        detailSpi.findAllByUserId(userId)
+        detailSpi.findAllByUserIdOrderBySentAtDesc(userId)
             .forEach {
                 assertThat(it.title).isEqualTo(title)
                 assertThat(it.content).isEqualTo(content)
diff --git a/notification-infrastructure/src/main/kotlin/io/github/v1servicenotification/domain/detail/domain/repository/CustomDetailRepositoryImpl.kt b/notification-infrastructure/src/main/kotlin/io/github/v1servicenotification/domain/detail/domain/repository/CustomDetailRepositoryImpl.kt
index 3159603..9fb621b 100644
--- a/notification-infrastructure/src/main/kotlin/io/github/v1servicenotification/domain/detail/domain/repository/CustomDetailRepositoryImpl.kt
+++ b/notification-infrastructure/src/main/kotlin/io/github/v1servicenotification/domain/detail/domain/repository/CustomDetailRepositoryImpl.kt
@@ -19,7 +19,7 @@ class CustomDetailRepositoryImpl(
     private val detailMapper: DetailMapper,
     private val query: JPAQueryFactory,
 ) : QueryDetailRepositorySpi, PostDetailRepositorySpi {
-    override fun findAllByUserId(userId: UUID): List<TopicDetailModel> {
+    override fun findAllByUserIdOrderBySentAtDesc(userId: UUID): List<TopicDetailModel> {
         return query
             .select(
                 QDetailVO(
@@ -49,7 +49,7 @@ class CustomDetailRepositoryImpl(
                     topic = it.topic,
                 )
             }
-            .toList()
+            .toList().sortedByDescending { it.sentAt }
     }
 
     override fun findAllByUseridAndIsReadFalse(userId: UUID): Int {