diff --git a/packages/backend/src/core/HashtagService.ts b/packages/backend/src/core/HashtagService.ts
index 4900fa90a1..1a06767da8 100644
--- a/packages/backend/src/core/HashtagService.ts
+++ b/packages/backend/src/core/HashtagService.ts
@@ -5,7 +5,6 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import * as Redis from 'ioredis';
-import { getLineAndCharacterOfPosition } from 'typescript';
 import { DI } from '@/di-symbols.js';
 import type { MiUser } from '@/models/User.js';
 import { normalizeForSearch } from '@/misc/normalize-for-search.js';
@@ -15,6 +14,7 @@ import type { HashtagsRepository } from '@/models/_.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
 import { bindThis } from '@/decorators.js';
 import { FeaturedService } from '@/core/FeaturedService.js';
+import { MetaService } from '@/core/MetaService.js';
 
 @Injectable()
 export class HashtagService {
@@ -28,6 +28,7 @@ export class HashtagService {
 		private userEntityService: UserEntityService,
 		private featuredService: FeaturedService,
 		private idService: IdService,
+		private metaService: MetaService,
 	) {
 	}
 
@@ -157,7 +158,9 @@ export class HashtagService {
 
 	@bindThis
 	public async updateHashtagsRanking(hashtag: string, userId: MiUser['id']): Promise<void> {
-		// TODO: instance.hiddenTagsの考慮
+		const instance = await this.metaService.fetch();
+		const hiddenTags = instance.hiddenTags.map(t => normalizeForSearch(t));
+		if (hiddenTags.includes(hashtag)) return;
 
 		// YYYYMMDDHHmm (10分間隔)
 		const now = new Date();
diff --git a/packages/backend/src/server/api/endpoints/hashtags/trend.ts b/packages/backend/src/server/api/endpoints/hashtags/trend.ts
index a69e007a40..8f382eb96b 100644
--- a/packages/backend/src/server/api/endpoints/hashtags/trend.ts
+++ b/packages/backend/src/server/api/endpoints/hashtags/trend.ts
@@ -5,8 +5,6 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
-import { normalizeForSearch } from '@/misc/normalize-for-search.js';
-import { MetaService } from '@/core/MetaService.js';
 import { DI } from '@/di-symbols.js';
 import { FeaturedService } from '@/core/FeaturedService.js';
 import { HashtagService } from '@/core/HashtagService.js';
@@ -55,14 +53,10 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
-		private metaService: MetaService,
 		private featuredService: FeaturedService,
 		private hashtagService: HashtagService,
 	) {
 		super(meta, paramDef, async () => {
-			const instance = await this.metaService.fetch(true);
-			const hiddenTags = instance.hiddenTags.map(t => normalizeForSearch(t));
-
 			const ranking = await this.featuredService.getHashtagsRanking(10);
 
 			const charts = ranking.length === 0 ? {} : await this.hashtagService.getCharts(ranking, 20);