diff --git a/apps/readest-app/src/utils/polyfill.ts b/apps/readest-app/src/utils/polyfill.ts
index 7b8753c0..40ea84c2 100644
--- a/apps/readest-app/src/utils/polyfill.ts
+++ b/apps/readest-app/src/utils/polyfill.ts
@@ -1,5 +1,3 @@
-import 'abortcontroller-polyfill/dist/abortcontroller-polyfill-only';
-
 // A groupBy polyfill for foliate-js
 Object.groupBy ??= (iterable, callbackfn) => {
   const obj = Object.create(null);