Node.js 20 being deprecated on October 1, 2026

Following the Node.js 20 end of life on April 30, 2026, we are deprecating Node.js 20 for Builds and Functions on October 1, 2026.

How can I see which of my projects are affected?

You can see which of your projects are affected by this deprecation with:

Will my existing deployments be affected?

No, existing deployments with Serverless Functions Invocations to already-deployed functions will continue to work normally. Only new deployments will be affected.will not be affected.

When will I no longer be able to use Node.js 20?

On October 1, 2026, Node.js 20 will be disabled in . Existing projects using 20 as the version for Functions will display an error when a new deployment is created.Project Settings

How can I upgrade my Node.js version?

You can configure your Node.js version in or through the field in .Project Settingsenginespackage.json

You can also hand the upgrade to your coding agent:

What if I can't upgrade before October 1?

If you can't complete the upgrade in time without disrupting your app, deploy it as a instead. Add a at your project root and the image is built and deployed on every commit:container imageDockerfile.vercel

We still recommend upgrading when you can. With a container, you manage the Node.js version and its security updates yourself.

Upgrade before October 1, 2026. Learn more about .supported Node.js versions

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