diff --git a/app/javascript/mastodon/service_worker/entry.js b/app/javascript/mastodon/service_worker/entry.js
index a4aebcd3a7f..6ba4907827b 100644
--- a/app/javascript/mastodon/service_worker/entry.js
+++ b/app/javascript/mastodon/service_worker/entry.js
@@ -1,3 +1,8 @@
+// from https://joshuatz.com/posts/2021/strongly-typed-service-workers/
+/// <reference no-default-lib="true"/>
+/// <reference lib="esnext" />
+/// <reference lib="webworker" />
+
 import { ExpirationPlugin } from 'workbox-expiration';
 import { precacheAndRoute } from 'workbox-precaching';
 import { registerRoute } from 'workbox-routing';
diff --git a/app/javascript/mastodon/service_worker/web_push_locales.js b/app/javascript/mastodon/service_worker/web_push_locales.js
index 89ae20007bb..4071b8fa051 100644
--- a/app/javascript/mastodon/service_worker/web_push_locales.js
+++ b/app/javascript/mastodon/service_worker/web_push_locales.js
@@ -1,3 +1,7 @@
+/// <reference no-default-lib="true"/>
+/// <reference lib="esnext" />
+/// <reference lib="webworker" />
+
 /* eslint-disable import/no-commonjs --
    We need to use CommonJS here as its imported into a preval file (`emoji_compressed.js`) */
 
diff --git a/app/javascript/mastodon/service_worker/web_push_notifications.js b/app/javascript/mastodon/service_worker/web_push_notifications.js
index 77187a59ed2..c17c1ee693b 100644
--- a/app/javascript/mastodon/service_worker/web_push_notifications.js
+++ b/app/javascript/mastodon/service_worker/web_push_notifications.js
@@ -1,3 +1,7 @@
+/// <reference no-default-lib="true"/>
+/// <reference lib="esnext" />
+/// <reference lib="webworker" />
+
 import { IntlMessageFormat } from 'intl-messageformat';
 
 import { unescape } from 'lodash';
diff --git a/tsconfig.json b/tsconfig.json
index cc1f18a9925..4b0e63d9cef 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -10,7 +10,6 @@
     "noImplicitReturns": true,
     "noUncheckedIndexedAccess": true,
     "esModuleInterop": true,
-    "skipLibCheck": true,
     "baseUrl": "./",
     "incremental": true,
     "tsBuildInfoFile": "tmp/cache/tsconfig.tsbuildinfo",