How to control the ticks labels major or minor?

I have not been able to control the labels from scales/x/ticks/major or minor.
Here is a simple code to illustrate the problem.

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Major Ticks in Bold, Minor Ticks Normal</title>
    <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/chart.umd.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/[email protected]"></script>
    <script src="https://cdn.jsdelivr.net/npm/[email protected]"></script>
    <script src="https://cdn.jsdelivr.net/npm/[email protected]"></script>

</head>
<body>

<canvas id="myChart"></canvas>

<script>
    const ctx = document.getElementById('myChart').getContext('2d');
    const myChart = new Chart(ctx, {
        type: 'line',
        data: {
            labels: ['2023-10-01', '2023-10-02', '2023-10-03', '2023-10-04', '2023-10-05'],
            datasets: [{
                label: 'Sample Data',
                data: [10, 20, 15, 25, 18],
                borderColor: 'blue',
                borderWidth: 2,
                fill: false,
            }]
        },
        options: {
            scales: {
                x: {
                    type: 'time',
                    time: {
                        unit: 'hour',
                        displayFormats: {
                            day: 'YYYY/MM/DD',
                            hour: 'HH:MM'
                        }
                    },
                    ticks: {
                        major: {
                            enabled: true,
                            font: {
                                weight: 'bold'  // Major ticks in bold
                            }
                        },
                        minor: {
                            font: {
                                weight: 'normal'  // Minor ticks in normal weight
                            }
                        }
                    }
                },
                y: {
                    beginAtZero: true
                }
            }
        }
    });
</script>

</body>
</html>

enter image description here

I expect to have date in bold and hours with normal font. The documentation is not enough detailled on this feature.

Am I missing something ?