diff --git a/CHANGELOG.md b/CHANGELOG.md
index a6787ae2da43..4c7c910be788 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-- Nothing yet!
+### Fixed
+
+- Ensure `Symbol.dispose` and `Symbol.asyncDispose` are polyfilled ([#15404](https://github.com/tailwindlabs/tailwindcss/pull/15404))
 
 ## [4.0.0-beta.7] - 2024-12-13
 
@@ -763,3 +765,4 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Move the CLI into a separate `@tailwindcss/cli` package ([#13095](https://github.com/tailwindlabs/tailwindcss/pull/13095))
 
 ## [4.0.0-alpha.1] - 2024-03-06
+
diff --git a/packages/@tailwindcss-node/src/instrumentation.ts b/packages/@tailwindcss-node/src/instrumentation.ts
index c408c4db786f..d27858d888bd 100644
--- a/packages/@tailwindcss-node/src/instrumentation.ts
+++ b/packages/@tailwindcss-node/src/instrumentation.ts
@@ -1,12 +1,20 @@
 import { DefaultMap } from '../../tailwindcss/src/utils/default-map'
 import * as env from './env'
 
+// See: https://www.typescriptlang.org/docs/handbook/release-notes/typescript-5-2.html#:~:text=Symbol.dispose,-??=%20Symbol(%22Symbol.dispose
+// @ts-expect-error — Ensure Symbol.dispose exists
+Symbol.dispose ??= Symbol('Symbol.dispose')
+// @ts-expect-error — Ensure Symbol.asyncDispose exists
+Symbol.asyncDispose ??= Symbol('Symbol.asyncDispose')
+
 export class Instrumentation implements Disposable {
   #hits = new DefaultMap(() => ({ value: 0 }))
   #timers = new DefaultMap(() => ({ value: 0n }))
   #timerStack: { id: string; label: string; namespace: string; value: bigint }[] = []
 
-  constructor(private defaultFlush = (message: string) => process.stderr.write(`${message}\n`)) {}
+  constructor(
+    private defaultFlush = (message: string) => void process.stderr.write(`${message}\n`),
+  ) {}
 
   hit(label: string) {
     this.#hits.get(label).value++