diff --git a/packages/backend/src/core/CacheService.ts b/packages/backend/src/core/CacheService.ts
index 263df5647..0fc47bf8e 100644
--- a/packages/backend/src/core/CacheService.ts
+++ b/packages/backend/src/core/CacheService.ts
@@ -128,6 +128,7 @@ export class CacheService implements OnApplicationShutdown {
 			const { type, body } = obj.message as GlobalEvents['internal']['payload'];
 			switch (type) {
 				case 'userChangeSuspendedState':
+				case 'userChangeDeletedState':
 				case 'remoteUserUpdated': {
 					const user = await this.usersRepository.findOneBy({ id: body.id });
 					if (user == null) {
diff --git a/packages/backend/src/core/DeleteAccountService.ts b/packages/backend/src/core/DeleteAccountService.ts
index fc5d217ae..79b614edb 100644
--- a/packages/backend/src/core/DeleteAccountService.ts
+++ b/packages/backend/src/core/DeleteAccountService.ts
@@ -9,6 +9,7 @@ import { QueueService } from '@/core/QueueService.js';
 import { UserSuspendService } from '@/core/UserSuspendService.js';
 import { DI } from '@/di-symbols.js';
 import { bindThis } from '@/decorators.js';
+import { GlobalEventService } from '@/core/GlobalEventService.js';
 
 @Injectable()
 export class DeleteAccountService {
@@ -18,6 +19,7 @@ export class DeleteAccountService {
 
 		private userSuspendService: UserSuspendService,
 		private queueService: QueueService,
+		private globalEventService: GlobalEventService,
 	) {
 	}
 
@@ -39,5 +41,7 @@ export class DeleteAccountService {
 		await this.usersRepository.update(user.id, {
 			isDeleted: true,
 		});
+
+		this.globalEventService.publishInternalEvent('userChangeDeletedState', { id: user.id, isDeleted: true });
 	}
 }
diff --git a/packages/backend/src/core/GlobalEventService.ts b/packages/backend/src/core/GlobalEventService.ts
index 01dd133ea..a127a6df3 100644
--- a/packages/backend/src/core/GlobalEventService.ts
+++ b/packages/backend/src/core/GlobalEventService.ts
@@ -209,6 +209,7 @@ type SerializedAll<T> = {
 
 export interface InternalEventTypes {
 	userChangeSuspendedState: { id: MiUser['id']; isSuspended: MiUser['isSuspended']; };
+	userChangeDeletedState: { id: MiUser['id']; isDeleted: MiUser['isDeleted']; };
 	userTokenRegenerated: { id: MiUser['id']; oldToken: string; newToken: string; };
 	remoteUserUpdated: { id: MiUser['id']; };
 	follow: { followerId: MiUser['id']; followeeId: MiUser['id']; };
diff --git a/packages/backend/src/core/activitypub/ApInboxService.ts b/packages/backend/src/core/activitypub/ApInboxService.ts
index 8d9cd74a2..b0f56a5d8 100644
--- a/packages/backend/src/core/activitypub/ApInboxService.ts
+++ b/packages/backend/src/core/activitypub/ApInboxService.ts
@@ -85,7 +85,6 @@ export class ApInboxService {
 		private apPersonService: ApPersonService,
 		private apQuestionService: ApQuestionService,
 		private queueService: QueueService,
-		private cacheService: CacheService,
 		private globalEventService: GlobalEventService,
 	) {
 		this.logger = this.apLoggerService.logger;