diff --git a/.github/workflows/basic-validation.yml b/.github/workflows/basic-validation.yml
index d2b406f3..4cb6489e 100644
--- a/.github/workflows/basic-validation.yml
+++ b/.github/workflows/basic-validation.yml
@@ -16,4 +16,4 @@ jobs:
     name: Basic validation
     uses: actions/reusable-workflows/.github/workflows/basic-validation.yml@main
     with:
-      node-version: '20.x'
+      node-version: '24.x'
diff --git a/.github/workflows/e2e-cache.yml b/.github/workflows/e2e-cache.yml
index cede9b63..5b7041bd 100644
--- a/.github/workflows/e2e-cache.yml
+++ b/.github/workflows/e2e-cache.yml
@@ -19,7 +19,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest, macos-13]
-        node-version: [18, 20, 22]
+        node-version: [18, 20, 22, 24]
     steps:
       - uses: actions/checkout@v4
       - name: Clean global cache
@@ -42,7 +42,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest, macos-13]
-        node-version: [18, 20, 22]
+        node-version: [18, 20, 22, 24]
     steps:
       - uses: actions/checkout@v4
       - name: Install pnpm
@@ -75,13 +75,13 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest, macos-13]
-        node-version: [18, 20]
+        node-version: [18, 20, 24]
     steps:
       - uses: actions/checkout@v4
       - name: Yarn version
         run: yarn --version
       - name: Generate yarn file
-        run: yarn install
+        run: yarn install --ignore-engines
       - name: Remove dependencies
         shell: pwsh
         run: Remove-Item node_modules -Force -Recurse
@@ -107,7 +107,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest, macos-13]
-        node-version: [18, 20, 22]
+        node-version: [18, 20, 22, 24]
     steps:
       - uses: actions/checkout@v4
       - name: Update yarn
@@ -139,7 +139,7 @@ jobs:
     name: Test yarn subprojects
     strategy:
       matrix:
-        node-version: [18, 20, 22]
+        node-version: [18, 20, 22, 24]
     runs-on: ubuntu-latest
 
     steps:
@@ -166,7 +166,7 @@ jobs:
     name: Test yarn subprojects all locally managed
     strategy:
       matrix:
-        node-version: [18, 20, 22]
+        node-version: [18, 20, 22, 24]
     runs-on: ubuntu-latest
 
     steps:
@@ -193,7 +193,7 @@ jobs:
     name: Test yarn subprojects some locally managed
     strategy:
       matrix:
-        node-version: [18, 20, 22]
+        node-version: [18, 20, 22, 24]
     runs-on: ubuntu-latest
 
     steps:
@@ -220,7 +220,7 @@ jobs:
     name: Test yarn subprojects managed by git
     strategy:
       matrix:
-        node-version: [18, 20, 22]
+        node-version: [18, 20, 22, 24]
     runs-on: ubuntu-latest
 
     steps:
diff --git a/.github/workflows/versions.yml b/.github/workflows/versions.yml
index b51ba8b5..eb2a481b 100644
--- a/.github/workflows/versions.yml
+++ b/.github/workflows/versions.yml
@@ -18,7 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest, macos-13]
-        node-version: [18, 20, 22]
+        node-version: [18, 20, 22, 24]
     steps:
       - uses: actions/checkout@v4
       - name: Setup Node
@@ -139,7 +139,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest, macos-13]
-        node-version: [18, 20, 22]
+        node-version: [18, 20, 22, 24]
     steps:
       - uses: actions/checkout@v4
       - name: Setup Node and check latest
@@ -166,7 +166,7 @@ jobs:
         with:
           node-version-file: '__tests__/data/${{ matrix.node-version-file }}'
       - name: Verify node
-        run: __tests__/verify-node.sh 20
+        run: __tests__/verify-node.sh 24
 
   version-file-volta:
     runs-on: ${{ matrix.os }}
@@ -181,7 +181,7 @@ jobs:
         with:
           node-version-file: '__tests__/data/package-volta.json'
       - name: Verify node
-        run: __tests__/verify-node.sh 20
+        run: __tests__/verify-node.sh 24
 
   version-file-volta-extends:
     runs-on: ${{ matrix.os }}
@@ -196,7 +196,7 @@ jobs:
         with:
           node-version-file: '__tests__/data/package-volta-extends.json'
       - name: Verify node
-        run: __tests__/verify-node.sh 20
+        run: __tests__/verify-node.sh 24
 
   node-dist:
     runs-on: ${{ matrix.os }}
diff --git a/.licenses/npm/@types/node.dep.yml b/.licenses/npm/@types/node.dep.yml
index 4773dad7..86544f48 100644
Binary files a/.licenses/npm/@types/node.dep.yml and b/.licenses/npm/@types/node.dep.yml differ
diff --git a/.licenses/npm/undici-types.dep.yml b/.licenses/npm/undici-types.dep.yml
index a65b8aff..370219bf 100644
Binary files a/.licenses/npm/undici-types.dep.yml and b/.licenses/npm/undici-types.dep.yml differ
diff --git a/__tests__/data/.nvmrc b/__tests__/data/.nvmrc
index 9a2a0e21..54c65116 100644
--- a/__tests__/data/.nvmrc
+++ b/__tests__/data/.nvmrc
@@ -1 +1 @@
-v20
+v24
diff --git a/__tests__/data/.tool-versions b/__tests__/data/.tool-versions
index 6de89a83..7ca549c1 100644
--- a/__tests__/data/.tool-versions
+++ b/__tests__/data/.tool-versions
@@ -1 +1 @@
-nodejs 20.0.0
+nodejs 24.0.0
diff --git a/__tests__/data/.tool-versions-node b/__tests__/data/.tool-versions-node
index 4d5dd711..9f5de99c 100644
--- a/__tests__/data/.tool-versions-node
+++ b/__tests__/data/.tool-versions-node
@@ -1 +1 @@
-node 20.0.0
+node 24.0.0
diff --git a/__tests__/data/package-volta.json b/__tests__/data/package-volta.json
index 6c9583f1..12b3b6ef 100644
--- a/__tests__/data/package-volta.json
+++ b/__tests__/data/package-volta.json
@@ -3,6 +3,6 @@
     "node": "^14.0.0"
   },
   "volta": {
-    "node": "20.0.0"
+    "node": "24.0.0"
   }
 }
diff --git a/__tests__/data/package.json b/__tests__/data/package.json
index 4fb385a2..724da539 100644
--- a/__tests__/data/package.json
+++ b/__tests__/data/package.json
@@ -1,5 +1,5 @@
 {
   "engines": {
-    "node": "^20.0.0"
+    "node": "^24.0.0"
   }
 }
diff --git a/__tests__/verify-node.sh b/__tests__/verify-node.sh
index 797aa789..38a03a4c 100755
--- a/__tests__/verify-node.sh
+++ b/__tests__/verify-node.sh
@@ -7,8 +7,13 @@ fi
 
 node_version="$(node --version)"
 echo "Found node version '$node_version'"
-if [ -z "$(echo $node_version | grep --fixed-strings v$1)" ]; then
-  echo "Unexpected version"
+
+# Extract the major version from the node version (remove the 'v' prefix)
+actual_major_version=$(echo $node_version | sed -E 's/^v([0-9]+)\..*/\1/')
+expected_major_version=$(echo $1 | sed -E 's/^([0-9]+)\..*/\1/') # Extract major version from argument
+
+if [ "$actual_major_version" != "$expected_major_version" ]; then
+  echo "Expected Node.js $expected_major_version.x.x but found $node_version"
   exit 1
 fi
 
diff --git a/action.yml b/action.yml
index ef58e699..fb7cb2de 100644
--- a/action.yml
+++ b/action.yml
@@ -37,7 +37,7 @@ outputs:
   node-version:
     description: 'The installed node version.'
 runs:
-  using: 'node20'
+  using: 'node24'
   main: 'dist/setup/index.js'
   post: 'dist/cache-save/index.js'
   post-if: success()
diff --git a/package-lock.json b/package-lock.json
index fa0c2eb6..d09bf273 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "setup-node",
-  "version": "4.0.0",
+  "version": "5.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "setup-node",
-      "version": "4.0.0",
+      "version": "5.0.0",
       "license": "MIT",
       "dependencies": {
         "@actions/cache": "^4.0.3",
@@ -22,7 +22,7 @@
       },
       "devDependencies": {
         "@types/jest": "^29.5.14",
-        "@types/node": "^20.11.25",
+        "@types/node": "^24.1.0",
         "@types/semver": "^7.5.8",
         "@typescript-eslint/eslint-plugin": "^5.54.0",
         "@typescript-eslint/parser": "^5.54.0",
@@ -37,6 +37,9 @@
         "prettier": "^2.8.4",
         "ts-jest": "^29.1.2",
         "typescript": "^5.4.2"
+      },
+      "engines": {
+        "node": ">=24.0.0"
       }
     },
     "node_modules/@aashutoshrathi/word-wrap": {
@@ -1780,11 +1783,12 @@
       "dev": true
     },
     "node_modules/@types/node": {
-      "version": "20.11.25",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.11.25.tgz",
-      "integrity": "sha512-TBHyJxk2b7HceLVGFcpAUjsa5zIdsPWlR6XHfyGzd0SFu+/NFgQgMAl96MSDZgQDvJAvV6BKsFOrt6zIL09JDw==",
+      "version": "24.1.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-24.1.0.tgz",
+      "integrity": "sha512-ut5FthK5moxFKH2T1CUOC6ctR67rQRvvHdFLCD2Ql6KXmMuCrjsSsRI9UsLCm9M18BMwClv4pn327UvB7eeO1w==",
+      "license": "MIT",
       "dependencies": {
-        "undici-types": "~5.26.4"
+        "undici-types": "~7.8.0"
       }
     },
     "node_modules/@types/node-fetch": {
@@ -5552,9 +5556,10 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "5.26.5",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
-      "integrity": "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA=="
+      "version": "7.8.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.8.0.tgz",
+      "integrity": "sha512-9UJ2xGDvQ43tYyVMpuHlsgApydB8ZKfVYTsLDhXkFL/6gfkp+U8xTGdh8pMJv1SpZna0zxG1DwsKZsreLbXBxw==",
+      "license": "MIT"
     },
     "node_modules/universal-user-agent": {
       "version": "6.0.1",
diff --git a/package.json b/package.json
index dfa86bf2..3399437a 100644
--- a/package.json
+++ b/package.json
@@ -1,9 +1,12 @@
 {
   "name": "setup-node",
-  "version": "4.0.0",
+  "version": "5.0.0",
   "private": true,
   "description": "setup node action",
   "main": "lib/setup-node.js",
+  "engines": {
+    "node": ">=24.0.0"
+  },
   "scripts": {
     "build": "ncc build -o dist/setup src/setup-node.ts && ncc build -o dist/cache-save src/cache-save.ts",
     "format": "prettier --no-error-on-unmatched-pattern --config ./.prettierrc.js --write \"**/*.{ts,yml,yaml}\"",
@@ -38,7 +41,7 @@
   },
   "devDependencies": {
     "@types/jest": "^29.5.14",
-    "@types/node": "^20.11.25",
+    "@types/node": "^24.1.0",
     "@types/semver": "^7.5.8",
     "@typescript-eslint/eslint-plugin": "^5.54.0",
     "@typescript-eslint/parser": "^5.54.0",