Node.js convert HEIC file

I need a way to use Node.js to convert a photo from HEIC format to either jpg or png. I have searched and cannot seem to find anything that works.

npm -i heic-convert

const convert = require('heic-convert');
async function heicToPng(file, output) {
    console.log(file, output);
    const inputBuffer = await promisify(fs.readFile)(file);
    const outputBuffer = convert({
        buffer: inputBuffer, // the HEIC file buffer
        format: 'PNG', // output format
    });
    return promisify(fs.writeFile)(output, outputBuffer);
}