diff --git a/CHANGELOG.md b/CHANGELOG.md
index c693748f67..3decae2b9c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -31,6 +31,7 @@
 - Fix: ローカルタイムラインに投稿者自身の投稿への返信が含まれない問題を修正
 - Fix: 自分のフォローしているユーザーの自分のフォローしていないユーザーの visibility: followers な投稿への返信がストリーミングで流れてくる問題を修正
 - Fix: RedisへのTLキャッシュが有効の場合にHTL/LTL/STLが空になることがある問題を修正
+- Fix: STLでフォローしていないチャンネルが取得される問題を修正
 
 ## 2023.10.2
 
diff --git a/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts b/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts
index 7d0c9f1185..4eeec563d7 100644
--- a/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts
@@ -5,7 +5,7 @@
 
 import { Brackets } from 'typeorm';
 import { Inject, Injectable } from '@nestjs/common';
-import type { NotesRepository, FollowingsRepository, MiNote } from '@/models/_.js';
+import type { NotesRepository, FollowingsRepository, MiNote, ChannelFollowingsRepository } from '@/models/_.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import ActiveUsersChart from '@/core/chart/charts/active-users.js';
 import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
@@ -69,6 +69,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		@Inject(DI.notesRepository)
 		private notesRepository: NotesRepository,
 
+		@Inject(DI.channelFollowingsRepository)
+		private channelFollowingsRepository: ChannelFollowingsRepository,
+
 		private noteEntityService: NoteEntityService,
 		private roleService: RoleService,
 		private activeUsersChart: ActiveUsersChart,
@@ -208,6 +211,11 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		withReplies: boolean,
 	}, me: MiLocalUser) {
 		const followees = await this.userFollowingService.getFollowees(me.id);
+		const followingChannels = await this.channelFollowingsRepository.find({
+			where: {
+				followerId: me.id,
+			},
+		});
 
 		const query = this.queryService.makePaginationQuery(this.notesRepository.createQueryBuilder('note'), ps.sinceId, ps.untilId)
 			.andWhere(new Brackets(qb => {
@@ -226,6 +234,14 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			.leftJoinAndSelect('reply.user', 'replyUser')
 			.leftJoinAndSelect('renote.user', 'renoteUser');
 
+		if (followingChannels.length > 0) {
+			const followingChannelIds = followingChannels.map(x => x.followeeId);
+
+			query.andWhere('note.channelId IN (:...followingChannelIds) OR note.channelId IS NULL', { followingChannelIds });
+		} else {
+			query.andWhere('note.channelId IS NULL');
+		}
+
 		if (!ps.withReplies) {
 			query.andWhere(new Brackets(qb => {
 				qb