diff --git a/packages/backend/src/core/remote/activitypub/models/ApMentionService.ts b/packages/backend/src/core/remote/activitypub/models/ApMentionService.ts
index 710e1acfaf..1275e24c62 100644
--- a/packages/backend/src/core/remote/activitypub/models/ApMentionService.ts
+++ b/packages/backend/src/core/remote/activitypub/models/ApMentionService.ts
@@ -6,7 +6,7 @@ import type { Config } from '@/config.js';
 import { toArray, unique } from '@/misc/prelude/array.js';
 import type { CacheableUser } from '@/models/entities/User.js';
 import { isMention } from '../type.js';
-import { ApResolverService } from '../ApResolverService.js';
+import { ApResolverService, Resolver } from '../ApResolverService.js';
 import { ApPersonService } from './ApPersonService.js';
 import type { IObject, IApMention } from '../type.js';
 
@@ -21,11 +21,9 @@ export class ApMentionService {
 	) {
 	}
 
-	public async extractApMentions(tags: IObject | IObject[] | null | undefined) {
+	public async extractApMentions(tags: IObject | IObject[] | null | undefined, resolver: Resolver) {
 		const hrefs = unique(this.extractApMentionObjects(tags).map(x => x.href as string));
-	
-		const resolver = this.apResolverService.createResolver();
-	
+
 		const limit = promiseLimit<CacheableUser | null>(2);
 		const mentionedUsers = (await Promise.all(
 			hrefs.map(x => limit(() => this.apPersonService.resolvePerson(x, resolver).catch(() => null))),
diff --git a/packages/backend/src/core/remote/activitypub/models/ApNoteService.ts b/packages/backend/src/core/remote/activitypub/models/ApNoteService.ts
index a34a1d1eb8..7cf6725a38 100644
--- a/packages/backend/src/core/remote/activitypub/models/ApNoteService.ts
+++ b/packages/backend/src/core/remote/activitypub/models/ApNoteService.ts
@@ -140,7 +140,7 @@ export class ApNoteService {
 			throw new Error('actor has been suspended');
 		}
 	
-		const noteAudience = await this.apAudienceService.parseAudience(actor, note.to, note.cc);
+		const noteAudience = await this.apAudienceService.parseAudience(actor, note.to, note.cc, resolver);
 		let visibility = noteAudience.visibility;
 		const visibleUsers = noteAudience.visibleUsers;
 	
@@ -154,7 +154,7 @@ export class ApNoteService {
 	
 		let isMessaging = note._misskey_talk && visibility === 'specified';
 	
-		const apMentions = await this.apMentionService.extractApMentions(note.tag);
+		const apMentions = await this.apMentionService.extractApMentions(note.tag, resolver);
 		const apHashtags = await extractApHashtags(note.tag);
 	
 		// 添付ファイル