diff --git a/packages/backend/src/core/entities/NoteEntityService.ts b/packages/backend/src/core/entities/NoteEntityService.ts
index 1777e2cf54..03cd58917b 100644
--- a/packages/backend/src/core/entities/NoteEntityService.ts
+++ b/packages/backend/src/core/entities/NoteEntityService.ts
@@ -164,7 +164,7 @@ export class NoteEntityService implements OnModuleInit {
 
 		return {
 			multiple: poll.multiple,
-			expiresAt: poll.expiresAt,
+			expiresAt: poll.expiresAt?.toISOString() ?? null,
 			choices,
 		};
 	}
diff --git a/packages/backend/src/models/json-schema/note.ts b/packages/backend/src/models/json-schema/note.ts
index f1cb5d83cb..8ea75d244a 100644
--- a/packages/backend/src/models/json-schema/note.ts
+++ b/packages/backend/src/models/json-schema/note.ts
@@ -117,6 +117,39 @@ export const packedNoteSchema = {
 		poll: {
 			type: 'object',
 			optional: true, nullable: true,
+			properties: {
+				expiresAt: {
+					type: 'string',
+					optional: true, nullable: true,
+					format: 'date-time',
+				},
+				multiple: {
+					type: 'boolean',
+					optional: false, nullable: false,
+				},
+				choices: {
+					type: 'array',
+					optional: false, nullable: false,
+					items: {
+						type: 'object',
+						optional: false, nullable: false,
+						properties: {
+							isVoted: {
+								type: 'boolean',
+								optional: false, nullable: false,
+							},
+							text: {
+								type: 'string',
+								optional: false, nullable: false,
+							},
+							votes: {
+								type: 'number',
+								optional: false, nullable: false,
+							},
+						},
+					},
+				},
+			},
 		},
 		emojis: {
 			type: 'object',
diff --git a/packages/misskey-js/src/autogen/apiClientJSDoc.ts b/packages/misskey-js/src/autogen/apiClientJSDoc.ts
index 1da1b3b248..ce6387550c 100644
--- a/packages/misskey-js/src/autogen/apiClientJSDoc.ts
+++ b/packages/misskey-js/src/autogen/apiClientJSDoc.ts
@@ -1,6 +1,6 @@
 /*
  * version: 2023.12.2
- * generatedAt: 2024-01-08T06:48:05.059Z
+ * generatedAt: 2024-01-08T13:32:03.180Z
  */
 
 import type { SwitchCaseResponseType } from '../api.js';
diff --git a/packages/misskey-js/src/autogen/endpoint.ts b/packages/misskey-js/src/autogen/endpoint.ts
index 5b5a68900b..8a8b26bf8a 100644
--- a/packages/misskey-js/src/autogen/endpoint.ts
+++ b/packages/misskey-js/src/autogen/endpoint.ts
@@ -1,6 +1,6 @@
 /*
  * version: 2023.12.2
- * generatedAt: 2024-01-08T06:48:05.055Z
+ * generatedAt: 2024-01-08T13:32:03.177Z
  */
 
 import type {
diff --git a/packages/misskey-js/src/autogen/entities.ts b/packages/misskey-js/src/autogen/entities.ts
index d2ba9b8907..289cd865e2 100644
--- a/packages/misskey-js/src/autogen/entities.ts
+++ b/packages/misskey-js/src/autogen/entities.ts
@@ -1,6 +1,6 @@
 /*
  * version: 2023.12.2
- * generatedAt: 2024-01-08T06:48:05.053Z
+ * generatedAt: 2024-01-08T13:32:03.174Z
  */
 
 import { operations } from './types.js';
diff --git a/packages/misskey-js/src/autogen/models.ts b/packages/misskey-js/src/autogen/models.ts
index 7f31f8cb50..9c7786e02a 100644
--- a/packages/misskey-js/src/autogen/models.ts
+++ b/packages/misskey-js/src/autogen/models.ts
@@ -1,6 +1,6 @@
 /*
  * version: 2023.12.2
- * generatedAt: 2024-01-08T06:48:05.052Z
+ * generatedAt: 2024-01-08T13:32:03.173Z
  */
 
 import { components } from './types.js';
diff --git a/packages/misskey-js/src/autogen/types.ts b/packages/misskey-js/src/autogen/types.ts
index 667cdffdd4..8aa29d397b 100644
--- a/packages/misskey-js/src/autogen/types.ts
+++ b/packages/misskey-js/src/autogen/types.ts
@@ -3,7 +3,7 @@
 
 /*
  * version: 2023.12.2
- * generatedAt: 2024-01-08T06:48:04.940Z
+ * generatedAt: 2024-01-08T13:32:03.048Z
  */
 
 /**
@@ -3791,7 +3791,16 @@ export type components = {
       fileIds?: string[];
       files?: components['schemas']['DriveFile'][];
       tags?: string[];
-      poll?: Record<string, unknown> | null;
+      poll?: ({
+        /** Format: date-time */
+        expiresAt?: string | null;
+        multiple: boolean;
+        choices: {
+            isVoted: boolean;
+            text: string;
+            votes: number;
+          }[];
+      }) | null;
       emojis?: Record<string, never>;
       /**
        * Format: id