diff --git a/packages/frontend-embed/tsconfig.json b/packages/frontend-embed/tsconfig.json
index 45f933dc2844..60164a7e3d37 100644
--- a/packages/frontend-embed/tsconfig.json
+++ b/packages/frontend-embed/tsconfig.json
@@ -10,8 +10,8 @@
 		"declaration": false,
 		"sourceMap": false,
 		"target": "ES2022",
-		"module": "nodenext",
-		"moduleResolution": "nodenext",
+		"module": "ES2022",
+		"moduleResolution": "Bundler",
 		"removeComments": false,
 		"noLib": false,
 		"strict": true,
diff --git a/packages/frontend/tsconfig.json b/packages/frontend/tsconfig.json
index 4e5ca7f55944..68b6651a56ee 100644
--- a/packages/frontend/tsconfig.json
+++ b/packages/frontend/tsconfig.json
@@ -10,8 +10,8 @@
 		"declaration": false,
 		"sourceMap": false,
 		"target": "ES2022",
-		"module": "nodenext",
-		"moduleResolution": "nodenext",
+		"module": "ES2022",
+		"moduleResolution": "Bundler",
 		"removeComments": false,
 		"noLib": false,
 		"strict": true,
diff --git a/packages/misskey-js/etc/misskey-js.api.md b/packages/misskey-js/etc/misskey-js.api.md
index 01a3dbbb3074..50002f198332 100644
--- a/packages/misskey-js/etc/misskey-js.api.md
+++ b/packages/misskey-js/etc/misskey-js.api.md
@@ -6,8 +6,8 @@
 
 import type { AuthenticationResponseJSON } from '@simplewebauthn/types';
 import { EventEmitter } from 'eventemitter3';
+import { Options } from 'reconnecting-websocket';
 import type { PublicKeyCredentialRequestOptionsJSON } from '@simplewebauthn/types';
-import _ReconnectingWebsocket from 'reconnecting-websocket';
 
 // Warning: (ae-forgotten-export) The symbol "components" needs to be exported by the entry point index.d.ts
 //
@@ -3150,7 +3150,7 @@ export class Stream extends EventEmitter<StreamEvents> implements IStream {
     constructor(origin: string, user: {
         token: string;
     } | null, options?: {
-        WebSocket?: _ReconnectingWebsocket.Options['WebSocket'];
+        WebSocket?: Options['WebSocket'];
     });
     // (undocumented)
     close(): void;
diff --git a/packages/misskey-js/src/streaming.ts b/packages/misskey-js/src/streaming.ts
index 6e34ec150817..fec6114ccaee 100644
--- a/packages/misskey-js/src/streaming.ts
+++ b/packages/misskey-js/src/streaming.ts
@@ -1,8 +1,10 @@
 import { EventEmitter } from 'eventemitter3';
-import _ReconnectingWebsocket from 'reconnecting-websocket';
+import _ReconnectingWebSocket, { Options } from 'reconnecting-websocket';
 import type { BroadcastEvents, Channels } from './streaming.types.js';
 
-const ReconnectingWebsocket = _ReconnectingWebsocket as unknown as typeof _ReconnectingWebsocket['default'];
+// コンストラクタとクラスそのものの定義が上手く解決出来ないため再定義
+const ReconnectingWebSocketConstructor = _ReconnectingWebSocket as unknown as typeof _ReconnectingWebSocket.default;
+type ReconnectingWebSocket = _ReconnectingWebSocket.default;
 
 export function urlQuery(obj: Record<string, string | number | boolean | undefined>): string {
 	const params = Object.entries(obj)
@@ -43,7 +45,7 @@ export interface IStream extends EventEmitter<StreamEvents> {
  */
 // eslint-disable-next-line import/no-default-export
 export default class Stream extends EventEmitter<StreamEvents> implements IStream {
-	private stream: _ReconnectingWebsocket.default;
+	private stream: ReconnectingWebSocket;
 	public state: 'initializing' | 'reconnecting' | 'connected' = 'initializing';
 	private sharedConnectionPools: Pool[] = [];
 	private sharedConnections: SharedConnection[] = [];
@@ -51,7 +53,7 @@ export default class Stream extends EventEmitter<StreamEvents> implements IStrea
 	private idCounter = 0;
 
 	constructor(origin: string, user: { token: string; } | null, options?: {
-		WebSocket?: _ReconnectingWebsocket.Options['WebSocket'];
+		WebSocket?: Options['WebSocket'];
 	}) {
 		super();
 
@@ -80,7 +82,7 @@ export default class Stream extends EventEmitter<StreamEvents> implements IStrea
 
 		const wsOrigin = origin.replace('http://', 'ws://').replace('https://', 'wss://');
 
-		this.stream = new ReconnectingWebsocket(`${wsOrigin}/streaming?${query}`, '', {
+		this.stream = new ReconnectingWebSocketConstructor(`${wsOrigin}/streaming?${query}`, '', {
 			minReconnectionDelay: 1, // https://github.com/pladaria/reconnecting-websocket/issues/91
 			WebSocket: options.WebSocket,
 		});