diff --git a/packages/backend/src/remote/activitypub/kernel/update/index.ts b/packages/backend/src/remote/activitypub/kernel/update/index.ts
index 96367af0a..32952a3b6 100644
--- a/packages/backend/src/remote/activitypub/kernel/update/index.ts
+++ b/packages/backend/src/remote/activitypub/kernel/update/index.ts
@@ -7,7 +7,7 @@ import { updatePerson } from '@/remote/activitypub/models/person.js';
 import { update as updateNote } from '@/remote/activitypub/kernel/update/note.js';
 
 /**
- * Updateアクティビティを捌きます
+ * Handle Update activity
  */
 export default async (actor: IRemoteUser, activity: IUpdate, resolver: Resolver): Promise<string> => {
 	if ('actor' in activity && actor.uri !== activity.actor) {
diff --git a/packages/backend/src/server/api/endpoints.ts b/packages/backend/src/server/api/endpoints.ts
index 54fe7a0a4..e02de0c4f 100644
--- a/packages/backend/src/server/api/endpoints.ts
+++ b/packages/backend/src/server/api/endpoints.ts
@@ -221,6 +221,7 @@ import * as ep___notes_hybridTimeline from './endpoints/notes/hybrid-timeline.js
 import * as ep___notes_localTimeline from './endpoints/notes/local-timeline.js';
 import * as ep___notes_mentions from './endpoints/notes/mentions.js';
 import * as ep___notes_polls_vote from './endpoints/notes/polls/vote.js';
+import * as ep___notes_polls_update from './endpoints/notes/polls/update.js';
 import * as ep___notes_reactions from './endpoints/notes/reactions.js';
 import * as ep___notes_reactions_create from './endpoints/notes/reactions/create.js';
 import * as ep___notes_reactions_delete from './endpoints/notes/reactions/delete.js';
@@ -515,6 +516,7 @@ const eps = [
 	['notes/local-timeline', ep___notes_localTimeline],
 	['notes/mentions', ep___notes_mentions],
 	['notes/polls/vote', ep___notes_polls_vote],
+	['notes/polls/update', ep___notes_polls_update],
 	['notes/reactions', ep___notes_reactions],
 	['notes/reactions/create', ep___notes_reactions_create],
 	['notes/reactions/delete', ep___notes_reactions_delete],
diff --git a/packages/backend/src/server/api/endpoints/notes/polls/update.ts b/packages/backend/src/server/api/endpoints/notes/polls/update.ts
new file mode 100644
index 000000000..e86dcfb61
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/notes/polls/update.ts
@@ -0,0 +1,44 @@
+import { getNote } from '@/server/api/common/getters.js';
+import { ApiError } from '@/server/api/error.js';
+import define from '@/server/api/define.js';
+import { Resolver } from '@/remote/activitypub/resolver.js';
+import { updateQuestion } from '@/remote/activitypub/models/question.js';
+
+export const meta = {
+	tags: ['notes'],
+
+	description: 'Fetches an updated number of votes for a poll attached to a remote note.',
+
+	requireCredential: true,
+
+	kind: 'write:votes',
+
+	errors: ['NO_SUCH_NOTE'],
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		noteId: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['noteId'],
+} as const;
+
+// eslint-disable-next-line import/no-default-export
+export default define(meta, paramDef, async (ps, user) => {
+	// Get votee
+	const note = await getNote(ps.noteId, user).catch(err => {
+		if (err.id === '9725d0ce-ba28-4dde-95a7-2cbb2c15de24') throw new ApiError('NO_SUCH_NOTE');
+		throw err;
+	});
+
+	if (!note.hasPoll) {
+		throw new ApiError('NO_SUCH_NOTE', 'The note exists but does not have a poll attached.');
+	}
+
+	if (note.uri == null) {
+		throw new ApiError('NO_SUCH_NOTE', 'Can only update polls of remote notes.');
+	}
+
+	await updateQuestion(note.uri, new Resolver());
+});