All Collections › Supported Languages › Node.js Node.js Learn how to deploy Node.js applications with Hatchbox Updated August 10, 2026 12:00am Specifying a Node.js VersionYou can specify the Node.js version in any of the following files:.node-version.tool-versions.nvmrc YarnIf yarn.lock is detected, Yarn 1.22 will be installed. ‹ Previous Ruby Next › How do I use jemalloc with my application?