Hi,

You should pass an object with needed properties to options prop to Line chart component. Options may look the next way :

let options = {
      scales: {
          yAxes: [{
              ticks: {
                  max: 100,
                  min: 0,
                  stepSize: 5
              }
          }],
      }

In the code above I set the increment to change by 5, the minimum set to 0, the maximum set to 100.

Now you should pass this object to the options property of <Line> component:

<Line data={this.state.dataLine} options={options} />

Hope this info was helpful.

Best regards.