diff --git a/.github/workflows/nodejs.yml b/.github/workflows/nodejs.yml
new file mode 100644
index 0000000..5955fac
--- /dev/null
+++ b/.github/workflows/nodejs.yml
@@ -0,0 +1,23 @@
+name: Node CI
+
+on:
+  push:
+    branches:
+    - master
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [18.x, 19.x, 20.x, 21.x]
+    steps:
+    - uses: actions/checkout@v3
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v3
+      with:
+        node-version: ${{ matrix.node-version }}
+    - name: npm install and test
+      run: |
+        npm install
+        npm test
diff --git a/.github/workflows/npm-publish.yml b/.github/workflows/npm-publish.yml
index be9461b..fa9dca9 100644
--- a/.github/workflows/npm-publish.yml
+++ b/.github/workflows/npm-publish.yml
@@ -11,10 +11,10 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
         with:
-          node-version: 12
+          node-version: 20
       - run: npm ci
       - run: npm test
 
@@ -22,10 +22,10 @@ jobs:
     needs: build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
         with:
-          node-version: 12
+          node-version: 20
           registry-url: https://registry.npmjs.org/
       - run: npm ci
       - run: npm publish
diff --git a/package-lock.json b/package-lock.json
index 77ebb0c..a18fbef 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,16 +1,31 @@
 {
   "name": "@pylonide/treehugger",
-  "version": "0.1.0",
-  "lockfileVersion": 1,
+  "version": "0.2.0",
+  "lockfileVersion": 3,
   "requires": true,
-  "dependencies": {
-    "amd-loader": {
+  "packages": {
+    "": {
+      "name": "@pylonide/treehugger",
+      "version": "0.2.0",
+      "license": "MIT",
+      "devDependencies": {
+        "amd-loader": "~0.0.8",
+        "asyncjs": "~0.0.13"
+      },
+      "engines": {
+        "node": ">= 18.18.2"
+      }
+    },
+    "node_modules/amd-loader": {
       "version": "0.0.8",
       "resolved": "https://registry.npmjs.org/amd-loader/-/amd-loader-0.0.8.tgz",
       "integrity": "sha1-ECKSgEDlZ+jmpvtYvaBS+BkYkgY=",
-      "dev": true
+      "dev": true,
+      "engines": {
+        "node": ">= 0.4.11"
+      }
     },
-    "asyncjs": {
+    "node_modules/asyncjs": {
       "version": "0.0.13",
       "resolved": "https://registry.npmjs.org/asyncjs/-/asyncjs-0.0.13.tgz",
       "integrity": "sha512-ZwrkJ1zbf+LMmFKbb9DylLdcf30HaJ/6vxv/2Yx0Dt/aW8cxWlwNPlBsPB3WUnu9dpbVzjWgp6ix6DdnecUhwg==",
diff --git a/package.json b/package.json
index 61ada65..c3161ef 100644
--- a/package.json
+++ b/package.json
@@ -1,10 +1,11 @@
 {
   "name": "@pylonide/treehugger",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "description": "treehugger is a Javascript library for program processing",
-  "author": "ajax.org B.V. <info@ajax.org>",
+  "author": "Sten Feldman <exile@chamber.ee>",
   "license": "MIT",
   "contributors": [
+    "ajax.org B.V. <info@ajax.org>",
     {
       "name": "Zef Hemel",
       "email": "zef@c9.io"
@@ -24,7 +25,7 @@
     "url": "http://github.com/pylonide/treehugger.git"
   },
   "engines": {
-    "node": ">= 12.22.1"
+    "node": ">= 18.18.2"
   },
   "devDependencies": {
     "amd-loader": "~0.0.8",