diff --git a/.nvmrc b/.nvmrc
index 209e3ef4b6247..82d5d714347ef 100644
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +1 @@
-20
+24.18
diff --git a/README.md b/README.md
index eb88e407cb612..cb64a35538457 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ You will need Node and npm installed on your computer. Node is a JavaScript runt
 
 If you are not using a package manager, see the [Node.js download page](https://nodejs.org/en/download/) for installers and binaries.
 
-**Note:** WordPress currently only officially supports Node.js `20.x` and npm `10.x`.
+**Note:** WordPress currently only officially supports Node.js `24.x` and npm `11.x`.
 
 You will also need a container environment such as [Docker Desktop](https://www.docker.com/products/docker-desktop) installed and running on your computer. The container environment is the virtualization software that powers the local development environment and can be installed just like any other regular application.
 
diff --git a/package-lock.json b/package-lock.json
index 20cfb2112df8f..3aea767d7f297 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -95,8 +95,8 @@
 				"webpack": "5.108.4"
 			},
 			"engines": {
-				"node": ">=20.10.0",
-				"npm": ">=10.2.3"
+				"node": ">=24.18.0",
+				"npm": ">=11.16.0"
 			}
 		},
 		"node_modules/@asamuzakjp/css-color": {
diff --git a/package.json b/package.json
index 396ec6a509336..92d885b923845 100644
--- a/package.json
+++ b/package.json
@@ -11,8 +11,8 @@
 		"ghcrRepo": "WordPress/gutenberg/gutenberg-wp-develop-build"
 	},
 	"engines": {
-		"node": ">=20.10.0",
-		"npm": ">=10.2.3"
+		"node": ">=24.18.0",
+		"npm": ">=11.16.0"
 	},
 	"author": "The WordPress Contributors",
 	"license": "GPL-2.0-or-later",
@@ -117,13 +117,13 @@
 		"zod": "3.25.1"
 	},
 	"scripts": {
-		"build": "grunt build",
-		"build:dev": "grunt build --dev",
-		"build:gutenberg": "grunt build:gutenberg",
-		"dev": "grunt watch --dev",
-		"test": "grunt test",
-		"watch": "grunt watch",
-		"grunt": "grunt",
+		"build": "node --no-maglev --no-concurrent-sparkplug node_modules/grunt/bin/grunt build",
+		"build:dev": "node --no-maglev --no-concurrent-sparkplug node_modules/grunt/bin/grunt build --dev",
+		"build:gutenberg": "node --no-maglev --no-concurrent-sparkplug node_modules/grunt/bin/grunt build:gutenberg",
+		"dev": "node --no-maglev --no-concurrent-sparkplug node_modules/grunt/bin/grunt watch --dev",
+		"test": "node --no-maglev --no-concurrent-sparkplug node_modules/grunt/bin/grunt test",
+		"watch": "node --no-maglev --no-concurrent-sparkplug node_modules/grunt/bin/grunt watch",
+		"grunt": "node --no-maglev --no-concurrent-sparkplug node_modules/grunt/bin/grunt",
 		"lint:jsdoc": "wp-scripts lint-js",
 		"lint:jsdoc:fix": "wp-scripts lint-js --fix",
 		"typecheck:js": "tsc --build",
@@ -146,6 +146,6 @@
 		"typecheck:php:baselines": "node ./tools/local-env/scripts/docker.js run --rm php composer phpstan:baselines --",
 		"gutenberg:copy": "node tools/gutenberg/copy.js",
 		"gutenberg:verify": "node tools/gutenberg/utils.js",
-		"gutenberg:download": "node tools/gutenberg/download.js && grunt build:gutenberg"
+		"gutenberg:download": "node tools/gutenberg/download.js && npm run build:gutenberg"
 	}
 }
diff --git a/src/wp-content/themes/twentytwentyfive/package-lock.json b/src/wp-content/themes/twentytwentyfive/package-lock.json
index 3e364a3c43d01..66dee02047a94 100644
--- a/src/wp-content/themes/twentytwentyfive/package-lock.json
+++ b/src/wp-content/themes/twentytwentyfive/package-lock.json
@@ -15,8 +15,8 @@
 				"postcss-cli": "^11.0.1"
 			},
 			"engines": {
-				"node": ">=20.10.0",
-				"npm": ">=10.2.3"
+				"node": ">=24.18.0",
+				"npm": ">=11.16.0"
 			}
 		},
 		"node_modules/@wordpress/browserslist-config": {
diff --git a/src/wp-content/themes/twentytwentyfive/package.json b/src/wp-content/themes/twentytwentyfive/package.json
index 9da89b58c35e0..68baa03615613 100644
--- a/src/wp-content/themes/twentytwentyfive/package.json
+++ b/src/wp-content/themes/twentytwentyfive/package.json
@@ -13,8 +13,8 @@
 	},
 	"homepage": "https://wordpress.org/themes/twentytwentyfive/",
 	"engines": {
-		"node": ">=20.10.0",
-		"npm": ">=10.2.3"
+		"node": ">=24.18.0",
+		"npm": ">=11.16.0"
 	},
 	"devDependencies": {
 		"@wordpress/browserslist-config": "^6.34.0",
diff --git a/src/wp-content/themes/twentytwentyone/package-lock.json b/src/wp-content/themes/twentytwentyone/package-lock.json
index c91af0fd29418..947acba18edcc 100644
--- a/src/wp-content/themes/twentytwentyone/package-lock.json
+++ b/src/wp-content/themes/twentytwentyone/package-lock.json
@@ -33,8 +33,8 @@
 				"stylelint-config-recommended-scss": "^16.0.2"
 			},
 			"engines": {
-				"node": ">=20.10.0",
-				"npm": ">=10.2.3"
+				"node": ">=24.18.0",
+				"npm": ">=11.16.0"
 			}
 		},
 		"node_modules/@aashutoshrathi/word-wrap": {
diff --git a/src/wp-content/themes/twentytwentyone/package.json b/src/wp-content/themes/twentytwentyone/package.json
index 2e546c99eb612..7097e3f65f70f 100644
--- a/src/wp-content/themes/twentytwentyone/package.json
+++ b/src/wp-content/themes/twentytwentyone/package.json
@@ -13,8 +13,8 @@
 	},
 	"homepage": "https://wordpress.org/themes/twentytwentyone/",
 	"engines": {
-		"node": ">=20.10.0",
-		"npm": ">=10.2.3"
+		"node": ">=24.18.0",
+		"npm": ">=11.16.0"
 	},
 	"devDependencies": {
 		"@wordpress/browserslist-config": "^6.34.0",
diff --git a/src/wp-content/themes/twentytwentytwo/package-lock.json b/src/wp-content/themes/twentytwentytwo/package-lock.json
index 8d0f405241eb9..0917811e8d167 100644
--- a/src/wp-content/themes/twentytwentytwo/package-lock.json
+++ b/src/wp-content/themes/twentytwentytwo/package-lock.json
@@ -15,8 +15,8 @@
 				"postcss-cli": "^11.0.1"
 			},
 			"engines": {
-				"node": ">=20.10.0",
-				"npm": ">=10.2.3"
+				"node": ">=24.18.0",
+				"npm": ">=11.16.0"
 			}
 		},
 		"node_modules/@wordpress/browserslist-config": {
diff --git a/src/wp-content/themes/twentytwentytwo/package.json b/src/wp-content/themes/twentytwentytwo/package.json
index 842b94e80f1f1..b0b1a5e15f736 100644
--- a/src/wp-content/themes/twentytwentytwo/package.json
+++ b/src/wp-content/themes/twentytwentytwo/package.json
@@ -13,8 +13,8 @@
 	},
 	"homepage": "https://wordpress.org/themes/twentytwentytwo/",
 	"engines": {
-		"node": ">=20.10.0",
-		"npm": ">=10.2.3"
+		"node": ">=24.18.0",
+		"npm": ">=11.16.0"
 	},
 	"devDependencies": {
 		"@wordpress/browserslist-config": "^6.34.0",
diff --git a/tools/gutenberg/utils.js b/tools/gutenberg/utils.js
index b43e760735efe..d0084744024c8 100644
--- a/tools/gutenberg/utils.js
+++ b/tools/gutenberg/utils.js
@@ -231,7 +231,7 @@ function downloadGutenberg() {
 		process.exit( downloadResult.status ?? 1 );
 	}
 
-	const buildResult = spawnSync( 'grunt', [ 'build:gutenberg' ], { stdio: 'inherit', shell: true } );
+	const buildResult = spawnSync( 'npm', [ 'run', 'build:gutenberg' ], { stdio: 'inherit', shell: true } );
 	if ( buildResult.status !== 0 ) {
 		process.exit( buildResult.status ?? 1 );
 	}