diff --git docs/contributor/code/README.md docs/contributor/code/README.md
index 09412ef27..084ab0ca5 100644
--- docs/contributor/code/README.md
+++ docs/contributor/code/README.md
@@ -29,7 +29,7 @@ If you prefer Git and you’ve chosen a different text editor than Visual Studio
 
 You probably won’t need all the tools listed below when you start contributing to BuddyPress. You can choose only to install NodeJS and install the other tools once you need them.
 
-- [NodeJS latest LTS version](https://nodejs.org/en/) ([download links](https://nodejs.org/en/download/)). **Required**.
+- [ONLY SUPPORTED Node.js 20 LTS or 21 versions](https://nodejs.org/en/) ([download links](https://nodejs.org/en/download/)). **Required**.
 - [GruntJS](https://gruntjs.com/) ([Installation procedure for the CLI](https://gruntjs.com/getting-started#installing-the-cli)) *[1]*.
 - [Composer](https://getcomposer.org/) ([Installation procedure](https://getcomposer.org/download/)) *[2]*. Once installed we advise you to make it globally available under the command name `composer`.
 - [WP CLI](https://wp-cli.org/) ([Installation procedure](https://wp-cli.org/#installing)) *[3]*. Once installed we advise you to make it globally available under the command name `wp`.
@@ -83,7 +83,7 @@ If you move to the `~/Plugins/buddypress` directory once the download has finish
 
 ## Install our default local development environment
 
-The BuddyPress development version you just downloaded contains the [@wordpress/env](https://developer.wordpress.org/block-editor/packages/packages-env/) package to generate a local environment using [NodeJS (latest LTS version)](https://nodejs.org/en/) and [Docker](https://www.docker.com/). To install Docker, please follow the instructions listed below according to your operating system:
+The BuddyPress development version you just downloaded contains the [@wordpress/env](https://developer.wordpress.org/block-editor/packages/packages-env/) package to generate a local environment using [Node.js (ONLY 20 LTS or 21 versions)](https://nodejs.org/en/) and [Docker](https://www.docker.com/). To install Docker, please follow the instructions listed below according to your operating system:
 
 - [Windows 10 Pro](https://docs.docker.com/docker-for-windows/install/),
 - [all other versions of Windows](https://docs.docker.com/toolbox/toolbox_install_windows/),
diff --git npm-shrinkwrap.json npm-shrinkwrap.json
index b1cf03f42..ac9533936 100644
--- npm-shrinkwrap.json
+++ npm-shrinkwrap.json
@@ -41,7 +41,7 @@
 				"stylelint": "~13.13.1"
 			},
 			"engines": {
-				"node": ">=20.10.0",
+				"node": ">=20.0.0 <22.0.0",
 				"npm": ">=10.2.3"
 			}
 		},
diff --git package.json package.json
index 69ab248cb..db4918546 100644
--- package.json
+++ package.json
@@ -37,7 +37,7 @@
 		"stylelint": "~13.13.1"
 	},
 	"engines": {
-		"node": ">=20.10.0",
+		"node": ">=20.0.0 <22.0.0",
 		"npm": ">=10.2.3"
 	},
 	"scripts": {