diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
new file mode 100644
index 0000000..06d8634
--- /dev/null
+++ b/.github/workflows/test.yaml
@@ -0,0 +1,21 @@
+name: Test
+on:
+  - pull_request
+  - push
+jobs:
+  test:
+    runs-on: ubuntu-20.04
+    strategy:
+      matrix:
+        node:
+          - '18'
+          - '20'
+          - '21'
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node }}
+      - run: npm install
+      - run: npm test
+      - uses: codecov/codecov-action@v3
diff --git a/LICENSE.md b/LICENSE.md
new file mode 100644
index 0000000..d319c08
--- /dev/null
+++ b/LICENSE.md
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Thomas Bergwinkl
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
index 7c484f4..7d9abbe 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,5 @@
 # @rdfjs/to-ntriples
-
-[![Build Status](https://travis-ci.org/rdfjs/to-ntriples.svg?branch=master)](https://travis-ci.org/rdfjs/to-ntriples)
-
+[![build status](https://img.shields.io/github/actions/workflow/status/rdfjs-base/to-ntriples/test.yaml?branch=master)](https://github.com/rdfjs-base/to-ntriples/actions/workflows/test.yaml)
 [![npm version](https://img.shields.io/npm/v/@rdfjs/to-ntriples.svg)](https://www.npmjs.com/package/@rdfjs/to-ntriples)
 
 Converts [RDF/JS](http://rdf.js.org/) Terms, Quads and Datasets to N-Triple strings. 
@@ -9,8 +7,8 @@ Converts [RDF/JS](http://rdf.js.org/) Terms, Quads and Datasets to N-Triple stri
 ## Examples
 
 ```javascript
-const rdf = require('@rdfjs/data-model')
-const toNT = require('@rdfjs/to-ntriples')
+import rdf from '@rdfjs/data-model'
+import toNT from '@rdfjs/to-ntriples'
 
 // convert a Term/Literal to a N-Triple string (output: "example"@en)
 console.log(toNT(rdf.literal('example', 'en')))
diff --git a/index.js b/index.js
index 6c5ef7c..15320fe 100644
--- a/index.js
+++ b/index.js
@@ -1,10 +1,10 @@
-const blankNode = require('./lib/blankNode.js')
-const dataset = require('./lib/dataset.js')
-const defaultGraph = require('./lib/defaultGraph.js')
-const literal = require('./lib/literal.js')
-const namedNode = require('./lib/namedNode.js')
-const quad = require('./lib/quad.js')
-const variable = require('./lib/variable.js')
+import blankNode from './lib/blankNode.js'
+import dataset from './lib/dataset.js'
+import defaultGraph from './lib/defaultGraph.js'
+import literal from './lib/literal.js'
+import namedNode from './lib/namedNode.js'
+import quad from './lib/quad.js'
+import variable from './lib/variable.js'
 
 function toNT (term) {
   if (!term) {
@@ -43,4 +43,4 @@ function toNT (term) {
   throw new Error(`unknown termType ${term.termType}`)
 }
 
-module.exports = toNT
+export default toNT
diff --git a/lib/blankNode.js b/lib/blankNode.js
index 786d749..4d5a5a9 100644
--- a/lib/blankNode.js
+++ b/lib/blankNode.js
@@ -2,4 +2,4 @@ function blankNode (blankNode) {
   return '_:' + blankNode.value // TODO: escape special chars
 }
 
-module.exports = blankNode
+export default blankNode
diff --git a/lib/dataset.js b/lib/dataset.js
index 6cac44a..1420118 100644
--- a/lib/dataset.js
+++ b/lib/dataset.js
@@ -2,4 +2,4 @@ function dataset (dataset, toNT) {
   return [...dataset].map(quad => toNT(quad)).join('\n') + '\n'
 }
 
-module.exports = dataset
+export default dataset
diff --git a/lib/defaultGraph.js b/lib/defaultGraph.js
index f56b5ec..826736f 100644
--- a/lib/defaultGraph.js
+++ b/lib/defaultGraph.js
@@ -2,4 +2,4 @@ function defaultGraph () {
   return ''
 }
 
-module.exports = defaultGraph
+export default defaultGraph
diff --git a/lib/literal.js b/lib/literal.js
index a36f09b..fee8aa5 100644
--- a/lib/literal.js
+++ b/lib/literal.js
@@ -1,4 +1,4 @@
-const namedNode = require('./namedNode.js')
+import namedNode from './namedNode.js'
 
 const echarRegEx = /["\\\\\n\r]/
 const echarRegExAll = /["\\\\\n\r]/g
@@ -36,4 +36,4 @@ function literal (literal) {
   return '"' + escapedValue + '"^^' + namedNode(literal.datatype)
 }
 
-module.exports = literal
+export default literal
diff --git a/lib/namedNode.js b/lib/namedNode.js
index 5d8586c..e2b4de5 100644
--- a/lib/namedNode.js
+++ b/lib/namedNode.js
@@ -2,4 +2,4 @@ function namedNode (namedNode) {
   return '<' + namedNode.value + '>'
 }
 
-module.exports = namedNode
+export default namedNode
diff --git a/lib/quad.js b/lib/quad.js
index 738cab0..b8dda7c 100644
--- a/lib/quad.js
+++ b/lib/quad.js
@@ -7,4 +7,4 @@ function quad (quad, toNT) {
   return `${subjectString} ${predicateString} ${objectString} ${graphString ? graphString + ' ' : ''}.`
 }
 
-module.exports = quad
+export default quad
diff --git a/lib/variable.js b/lib/variable.js
index fed6e28..ad4a657 100644
--- a/lib/variable.js
+++ b/lib/variable.js
@@ -2,4 +2,4 @@ function variable (variable) {
   return '?' + variable.value
 }
 
-module.exports = variable
+export default variable
diff --git a/package.json b/package.json
index 5a95504..0fdb964 100644
--- a/package.json
+++ b/package.json
@@ -2,9 +2,9 @@
   "name": "@rdfjs/to-ntriples",
   "version": "2.0.0",
   "description": "Converts RDF/JS Terms, Quads and Datasets to N-Triple strings",
+  "type": "module",
   "main": "index.js",
   "scripts": {
-    "coverage": "codecov",
     "test": "stricter-standard && c8 --reporter=lcov --reporter=text mocha"
   },
   "repository": {
@@ -23,12 +23,10 @@
     "url": "https://github.com/rdfjs-base/to-ntriples/issues"
   },
   "homepage": "https://github.com/rdfjs-base/to-ntriples",
-  "dependencies": {},
   "devDependencies": {
-    "@rdfjs/data-model": "^1.3.0",
-    "c8": "^7.7.3",
-    "codecov": "^3.8.2",
-    "mocha": "^9.0.1",
-    "stricter-standard": "^0.2.0"
+    "@rdfjs/data-model": "^2.0.1",
+    "c8": "^9.1.0",
+    "mocha": "^10.3.0",
+    "stricter-standard": "^0.3.0"
   }
 }
diff --git a/test/test.js b/test/test.js
index 04de1ab..1d54c70 100644
--- a/test/test.js
+++ b/test/test.js
@@ -1,7 +1,7 @@
-const { strictEqual, throws } = require('assert')
-const rdf = require('@rdfjs/data-model')
-const { describe, it } = require('mocha')
-const toNT = require('../index.js')
+import { strictEqual, throws } from 'node:assert'
+import rdf from '@rdfjs/data-model'
+import { describe, it } from 'mocha'
+import toNT from '../index.js'
 
 describe('@rdfjs/to-ntriples', () => {
   it('should be a function', () => {