diff --git a/packages/sw/package.json b/packages/sw/package.json
index 5434ccfbe..868440857 100644
--- a/packages/sw/package.json
+++ b/packages/sw/package.json
@@ -10,8 +10,7 @@
 	"resolutions": {},
 	"dependencies": {
 		"esbuild": "^0.14.13",
-		"idb-keyval": "^6.0.3",
-		"misskey-js": "0.0.14"
+		"idb-keyval": "^6.0.3"
 	},
 	"devDependencies": {
 		"eslint": "^8.20.0"
diff --git a/packages/sw/src/filters/user.ts b/packages/sw/src/filters/user.ts
index 09437eb19..87cbe3a6b 100644
--- a/packages/sw/src/filters/user.ts
+++ b/packages/sw/src/filters/user.ts
@@ -1,5 +1,5 @@
-import * as misskey from 'misskey-js';
-import * as Acct from 'misskey-js/built/acct';
+import * as misskey from 'foundkey-js';
+import * as Acct from 'foundkey-js/built/acct';
 
 export const acct = (user: misskey.Acct) => {
 	return Acct.toString(user);
diff --git a/packages/sw/src/scripts/operations.ts b/packages/sw/src/scripts/operations.ts
index 02cf0d96c..ab74ba294 100644
--- a/packages/sw/src/scripts/operations.ts
+++ b/packages/sw/src/scripts/operations.ts
@@ -4,7 +4,7 @@
  */
 declare var self: ServiceWorkerGlobalScope;
 
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 import { SwMessage, swMessageOrderType } from '@/types';
 import { acct as getAcct } from '@/filters/user';
 import { getAccountFromId } from '@/scripts/get-account-from-id';
diff --git a/packages/sw/src/types.ts b/packages/sw/src/types.ts
index 6aa3726ea..1f7fe6ce7 100644
--- a/packages/sw/src/types.ts
+++ b/packages/sw/src/types.ts
@@ -1,4 +1,4 @@
-import * as Misskey from 'misskey-js';
+import * as Misskey from 'foundkey-js';
 
 export type swMessageOrderType = 'post' | 'push';
 
diff --git a/yarn.lock b/yarn.lock
index 38fb02492..f276605f0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8896,15 +8896,6 @@ minizlib@^2.1.1, minizlib@^2.1.2:
     minipass "^3.0.0"
     yallist "^4.0.0"
 
-misskey-js@0.0.14:
-  version "0.0.14"
-  resolved "https://registry.yarnpkg.com/misskey-js/-/misskey-js-0.0.14.tgz#1a616bdfbe81c6ee6900219eaf425bb5c714dd4d"
-  integrity sha512-bvLx6U3OwQwqHfp/WKwIVwdvNYAAPk0+YblXyxmSG3dwlzCgBRRLcB8o6bNruUDyJgh3t73pLDcOz3myxcUmww==
-  dependencies:
-    autobind-decorator "^2.4.0"
-    eventemitter3 "^4.0.7"
-    reconnecting-websocket "^4.4.0"
-
 mixin-deep@^1.2.0:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/mixin-deep/-/mixin-deep-1.3.2.tgz#1120b43dc359a785dce65b55b82e257ccf479566"