user is not allowed to do action [find] on [alura-node.livros]

Estou recebendo este erro ao tentar executar a requisição get "/livros":

MongoServerError: user is not allowed to do action [find] on [alura-node.livros]
    at Connection.onMessage (D:\Carlos\Desenvolvimento\Alura\Node\alura-node\node_modules\mongodb\lib\cmap\connection.js:202:26)
    at MessageStream.<anonymous> (D:\Carlos\Desenvolvimento\Alura\Node\alura-node\node_modules\mongodb\lib\cmap\connection.js:61:60)
    at MessageStream.emit (node:events:513:28)
    at processIncomingData (D:\Carlos\Desenvolvimento\Alura\Node\alura-node\node_modules\mongodb\lib\cmap\message_stream.js:124:16)
    at MessageStream._write (D:\Carlos\Desenvolvimento\Alura\Node\alura-node\node_modules\mongodb\lib\cmap\message_stream.js:33:9)
    at writeOrBuffer (node:internal/streams/writable:392:12)
    at _write (node:internal/streams/writable:333:10)
    at Writable.write (node:internal/streams/writable:337:10)
    at TLSSocket.ondata (node:internal/streams/readable:766:22)
    at TLSSocket.emit (node:events:513:28) {
  ok: 0,
  code: 8000,
  codeName: 'AtlasError',
  [Symbol(errorLabels)]: Set(0) {}
}

app.get('/livros', async (req, res) => {
    try {
        const resp = await livros.find();
        res.status(200).json(resp);
    } catch(err) {
        console.error(err);
        res.status(500).json({
            error: 'Falha ao buscar os livros.'
        });
    };
});