diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8006aa0..169e73e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+- Remove polyfill for `global.window` which is now redundant
+
 ## 4.2.0 (2024-11-02)
 
 - Add a new option called `renderParams`. This allows you to generate transparent images using `renderParams: { background: 'transparent' }` ([#244])
diff --git a/src/index.ts b/src/index.ts
index 89c634e..9892ebd 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,4 +1,3 @@
-import "./polyfill.js"; // do this before pdfjs
 import { createRequire } from "node:module";
 import path from "node:path";
 import * as pdfjs from "pdfjs-dist/legacy/build/pdf.mjs";
diff --git a/src/polyfill.ts b/src/polyfill.ts
deleted file mode 100644
index 56f348e..0000000
--- a/src/polyfill.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-// eslint-disable-next-line @typescript-eslint/ban-ts-comment
-// @ts-nocheck
-
-// @ts-expect-error pdfjs references window.xxx, which fails if the jest testEnvironment is node
-global.window ||= global;
-
-// 20ms because that's what pdfjs used to do: https://github.com/mozilla/pdf.js/pull/9138/files
-global.window.requestAnimationFrame = (callback) =>
-  global.window.setTimeout(callback, 20);
-global.window.cancelAnimationFrame = (id) => global.window.clearTimeout(id);