diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/CustomEmojiRepositoryImpl.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/CustomEmojiRepositoryImpl.kt
index 56fcc6d1..c095ae55 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/CustomEmojiRepositoryImpl.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/CustomEmojiRepositoryImpl.kt
@@ -37,27 +37,14 @@ class CustomEmojiRepositoryImpl : CustomEmojiRepository,
         get() = Companion.logger
 
     override suspend fun save(customEmoji: CustomEmoji): CustomEmoji = query {
-        val singleOrNull =
-            CustomEmojis.selectAll().where { CustomEmojis.id eq customEmoji.id.emojiId }.forUpdate().singleOrNull()
-        if (singleOrNull == null) {
-            CustomEmojis.insert {
-                it[id] = customEmoji.id.emojiId
-                it[name] = customEmoji.name
-                it[domain] = customEmoji.domain.domain
-                it[instanceId] = customEmoji.instanceId.instanceId
-                it[url] = customEmoji.url.toString()
-                it[category] = customEmoji.category
-                it[createdAt] = customEmoji.createdAt
-            }
-        } else {
-            CustomEmojis.update({ CustomEmojis.id eq customEmoji.id.emojiId }) {
-                it[name] = customEmoji.name
-                it[domain] = customEmoji.domain.domain
-                it[instanceId] = customEmoji.instanceId.instanceId
-                it[url] = customEmoji.url.toString()
-                it[category] = customEmoji.category
-                it[createdAt] = customEmoji.createdAt
-            }
+        CustomEmojis.upsert {
+            it[id] = customEmoji.id.emojiId
+            it[name] = customEmoji.name
+            it[domain] = customEmoji.domain.domain
+            it[instanceId] = customEmoji.instanceId.instanceId
+            it[url] = customEmoji.url.toString()
+            it[category] = customEmoji.category
+            it[createdAt] = customEmoji.createdAt
         }
         return@query customEmoji
     }
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/ExposedTimelineRelationshipRepository.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/ExposedTimelineRelationshipRepository.kt
index e501f9eb..5ea3c74d 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/ExposedTimelineRelationshipRepository.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/ExposedTimelineRelationshipRepository.kt
@@ -19,7 +19,7 @@ class ExposedTimelineRelationshipRepository : AbstractRepository(), TimelineRela
 
     override suspend fun save(timelineRelationship: TimelineRelationship): TimelineRelationship {
         query {
-            TimelineRelationships.insert {
+            TimelineRelationships.upsert {
                 it[id] = timelineRelationship.id.value
                 it[timelineId] = timelineRelationship.timelineId.value
                 it[actorId] = timelineRelationship.actorId.id
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/ExposedTimelineRepository.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/ExposedTimelineRepository.kt
index 227e4667..cd2b3f77 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/ExposedTimelineRepository.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/ExposedTimelineRepository.kt
@@ -20,7 +20,7 @@ class ExposedTimelineRepository(override val domainEventPublisher: DomainEventPu
 
     override suspend fun save(timeline: Timeline): Timeline {
         query {
-            Timelines.insert {
+            Timelines.upsert {
                 it[id] = timeline.id.value
                 it[userDetailId] = timeline.userDetailId.id
                 it[name] = timeline.name.value
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/InstanceRepositoryImpl.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/InstanceRepositoryImpl.kt
index 76844bed..de57ff44 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/InstanceRepositoryImpl.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/InstanceRepositoryImpl.kt
@@ -33,36 +33,21 @@ class InstanceRepositoryImpl : InstanceRepository,
         get() = Companion.logger
 
     override suspend fun save(instance: InstanceEntity): InstanceEntity = query {
-        if (Instance.selectAll().where { Instance.id.eq(instance.id.instanceId) }.forUpdate().empty()) {
-            Instance.insert {
-                it[id] = instance.id.instanceId
-                it[name] = instance.name.name
-                it[description] = instance.description.description
-                it[url] = instance.url.toString()
-                it[iconUrl] = instance.iconUrl.toString()
-                it[sharedInbox] = instance.sharedInbox?.toString()
-                it[software] = instance.software.software
-                it[version] = instance.version.version
-                it[isBlocked] = instance.isBlocked
-                it[isMuted] = instance.isMuted
-                it[moderationNote] = instance.moderationNote.note
-                it[createdAt] = instance.createdAt
-            }
-        } else {
-            Instance.update({ Instance.id eq instance.id.instanceId }) {
-                it[name] = instance.name.name
-                it[description] = instance.description.description
-                it[url] = instance.url.toString()
-                it[iconUrl] = instance.iconUrl.toString()
-                it[sharedInbox] = instance.sharedInbox?.toString()
-                it[software] = instance.software.software
-                it[version] = instance.version.version
-                it[isBlocked] = instance.isBlocked
-                it[isMuted] = instance.isMuted
-                it[moderationNote] = instance.moderationNote.note
-                it[createdAt] = instance.createdAt
-            }
+        Instance.upsert {
+            it[id] = instance.id.instanceId
+            it[name] = instance.name.name
+            it[description] = instance.description.description
+            it[url] = instance.url.toString()
+            it[iconUrl] = instance.iconUrl.toString()
+            it[sharedInbox] = instance.sharedInbox?.toString()
+            it[software] = instance.software.software
+            it[version] = instance.version.version
+            it[isBlocked] = instance.isBlocked
+            it[isMuted] = instance.isMuted
+            it[moderationNote] = instance.moderationNote.note
+            it[createdAt] = instance.createdAt
         }
+
         return@query instance
     }
 
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/MediaRepositoryImpl.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/MediaRepositoryImpl.kt
index d5bd5f2a..f04d4f68 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/MediaRepositoryImpl.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/MediaRepositoryImpl.kt
@@ -31,6 +31,22 @@ class MediaRepositoryImpl : MediaRepository, AbstractRepository() {
     override val logger: Logger
         get() = Companion.logger
 
+    override suspend fun save(media: EntityMedia): EntityMedia = query {
+        Media.upsert {
+            it[id] = media.id.id
+            it[name] = media.name.name
+            it[url] = media.url.toString()
+            it[remoteUrl] = media.remoteUrl?.toString()
+            it[thumbnailUrl] = media.thumbnailUrl?.toString()
+            it[type] = media.type.name
+            it[blurhash] = media.blurHash?.hash
+            it[mimeType] = media.mimeType.type + "/" + media.mimeType.subtype
+            it[description] = media.description?.description
+            it[actorId] = media.actorId.id
+        }
+        return@query media
+    }
+
     override suspend fun findById(id: MediaId): dev.usbharu.hideout.core.domain.model.media.Media? {
         return query {
             return@query Media
@@ -55,36 +71,6 @@ class MediaRepositoryImpl : MediaRepository, AbstractRepository() {
         }
     }
 
-    override suspend fun save(media: EntityMedia): EntityMedia = query {
-        if (Media.selectAll().where { Media.id eq media.id.id }.forUpdate().singleOrNull() != null
-        ) {
-            Media.update({ Media.id eq media.id.id }) {
-                it[name] = media.name.name
-                it[url] = media.url.toString()
-                it[remoteUrl] = media.remoteUrl?.toString()
-                it[thumbnailUrl] = media.thumbnailUrl?.toString()
-                it[type] = media.type.name
-                it[blurhash] = media.blurHash?.hash
-                it[mimeType] = media.mimeType.type + "/" + media.mimeType.subtype
-                it[description] = media.description?.description
-                it[actorId] = media.actorId.id
-            }
-        } else {
-            Media.insert {
-                it[id] = media.id.id
-                it[name] = media.name.name
-                it[url] = media.url.toString()
-                it[remoteUrl] = media.remoteUrl?.toString()
-                it[thumbnailUrl] = media.thumbnailUrl?.toString()
-                it[type] = media.type.name
-                it[blurhash] = media.blurHash?.hash
-                it[mimeType] = media.mimeType.type + "/" + media.mimeType.subtype
-                it[description] = media.description?.description
-                it[actorId] = media.actorId.id
-            }
-        }
-        return@query media
-    }
 
     companion object {
         private val logger = LoggerFactory.getLogger(MediaRepositoryImpl::class.java)
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/UserDetailRepositoryImpl.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/UserDetailRepositoryImpl.kt
index 9033e5e4..8251ec08 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/UserDetailRepositoryImpl.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/UserDetailRepositoryImpl.kt
@@ -41,26 +41,15 @@ class UserDetailRepositoryImpl(override val domainEventPublisher: DomainEventPub
 
     override suspend fun save(userDetail: UserDetail): UserDetail {
         val userDetail1 = query {
-            val singleOrNull =
-                UserDetails.selectAll().where { UserDetails.id eq userDetail.id.id }.forUpdate().singleOrNull()
-            if (singleOrNull == null) {
-                UserDetails.insert {
-                    it[id] = userDetail.id.id
-                    it[actorId] = userDetail.actorId.id
-                    it[password] = userDetail.password.password
-                    it[autoAcceptFolloweeFollowRequest] = userDetail.autoAcceptFolloweeFollowRequest
-                    it[lastMigration] = userDetail.lastMigration
-                    it[homeTimelineId] = userDetail.homeTimelineId?.value
-                }
-            } else {
-                UserDetails.update({ UserDetails.id eq userDetail.id.id }) {
-                    it[actorId] = userDetail.actorId.id
-                    it[password] = userDetail.password.password
-                    it[autoAcceptFolloweeFollowRequest] = userDetail.autoAcceptFolloweeFollowRequest
-                    it[lastMigration] = userDetail.lastMigration
-                    it[homeTimelineId] = userDetail.homeTimelineId?.value
-                }
+            UserDetails.upsert {
+                it[id] = userDetail.id.id
+                it[actorId] = userDetail.actorId.id
+                it[password] = userDetail.password.password
+                it[autoAcceptFolloweeFollowRequest] = userDetail.autoAcceptFolloweeFollowRequest
+                it[lastMigration] = userDetail.lastMigration
+                it[homeTimelineId] = userDetail.homeTimelineId?.value
             }
+
             onComplete {
                 update(userDetail)
             }