diff --git a/src/services/i/pin.ts b/src/services/i/pin.ts
index 1544b0fdc7..bcd5465c04 100644
--- a/src/services/i/pin.ts
+++ b/src/services/i/pin.ts
@@ -117,14 +117,14 @@ async function CreateRemoteInboxes(user: ILocalUser): Promise<string[]> {
 
 	const queue: string[] = [];
 
-	followers.map(following => {
+	for (const following of followers) {
 		const follower = following._follower;
 
 		if (isRemoteUser(follower)) {
 			const inbox = follower.sharedInbox || follower.inbox;
 			if (!queue.includes(inbox)) queue.push(inbox);
 		}
-	});
+	}
 
 	return queue;
 }
diff --git a/src/services/i/update.ts b/src/services/i/update.ts
index 25b55b0355..3d17c07963 100644
--- a/src/services/i/update.ts
+++ b/src/services/i/update.ts
@@ -19,14 +19,14 @@ export async function publishToFollowers(userId: mongo.ObjectID) {
 
 	// フォロワーがリモートユーザーかつ投稿者がローカルユーザーならUpdateを配信
 	if (isLocalUser(user)) {
-		followers.map(following => {
+		for (const following of followers) {
 			const follower = following._follower;
 
 			if (isRemoteUser(follower)) {
 				const inbox = follower.sharedInbox || follower.inbox;
 				if (!queue.includes(inbox)) queue.push(inbox);
 			}
-		});
+		}
 
 		if (queue.length > 0) {
 			const content = packAp(renderUpdate(await renderPerson(user), user));
diff --git a/src/services/note/create.ts b/src/services/note/create.ts
index 5e4dfd22ea..99cf14ecfa 100644
--- a/src/services/note/create.ts
+++ b/src/services/note/create.ts
@@ -201,7 +201,7 @@ export default async (user: IUser, data: Option, silent = false) => new Promise<
 	}
 
 	// ハッシュタグ登録
-	tags.map(tag => registerHashtag(user, tag));
+	for (const tag of tags) registerHashtag(user, tag);
 
 	// ファイルが添付されていた場合ドライブのファイルの「このファイルが添付された投稿一覧」プロパティにこの投稿を追加
 	if (data.files) {
@@ -562,7 +562,7 @@ async function publishToFollowers(note: INote, user: IUser, noteActivity: any) {
 
 	const queue: string[] = [];
 
-	followers.map(following => {
+	for (const following of followers) {
 		const follower = following._follower;
 
 		if (isLocalUser(follower)) {
@@ -586,7 +586,7 @@ async function publishToFollowers(note: INote, user: IUser, noteActivity: any) {
 				if (!queue.includes(inbox)) queue.push(inbox);
 			}
 		}
-	});
+	}
 
 	queue.forEach(inbox => {
 		deliver(user as any, noteActivity, inbox);