diff --git a/packages/backend/package.json b/packages/backend/package.json
index 4c393dda0..94ab9b05b 100644
--- a/packages/backend/package.json
+++ b/packages/backend/package.json
@@ -69,7 +69,6 @@
 		"koa-views": "7.0.2",
 		"mfm-js": "0.22.1",
 		"mime-types": "2.1.35",
-		"misskey-js": "0.0.14",
 		"mocha": "10.0.0",
 		"multer": "1.4.5-lts.1",
 		"nested-property": "4.0.0",
diff --git a/packages/backend/test/utils.ts b/packages/backend/test/utils.ts
index 245cf858d..2fd939353 100644
--- a/packages/backend/test/utils.ts
+++ b/packages/backend/test/utils.ts
@@ -6,7 +6,7 @@ import * as childProcess from 'child_process';
 import * as http from 'node:http';
 import { SIGKILL } from 'constants';
 import WebSocket from 'ws';
-import * as misskey from 'misskey-js';
+import * as misskey from 'foundkey-js';
 import fetch from 'node-fetch';
 import FormData from 'form-data';
 import { DataSource } from 'typeorm';