diff --git a/.github/workflows/node.js.yml b/.github/workflows/node.js.yml
index e137b36..cf1dfea 100644
--- a/.github/workflows/node.js.yml
+++ b/.github/workflows/node.js.yml
@@ -16,16 +16,15 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [12.x, 14.x, 16.x]
+        node-version: [22.x]
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
 
     steps:
     - uses: actions/checkout@v2
     - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v2
+      uses: actions/setup-node@v4
       with:
         node-version: ${{ matrix.node-version }}
-        cache: 'npm'
     - run: npm ci
     - run: npm run build --if-present
     - run: npm test
diff --git a/README.md b/README.md
index 207a40a..8fb3b59 100644
--- a/README.md
+++ b/README.md
@@ -211,11 +211,6 @@ $ npm test
 
 Make sure you have the dev dependencies installed (e.g. `npm install .`)
 
-## Node version
-
-This project requires at least Node v4.2.
-Check out version `0.1.1` if you need support for older versions of Node.
-
 ## CLI usage
 
 You can use script directly from command line for generating json data.