maxBoxWidth property is not working with Boxplot graph.

[AzeemMalik51]

I want to customize the width of BoxPlot is there any work around??
desired result
https://ibb.co/bRVqF7

current result
https://ibb.co/bRicv7

box plot graph options object is as follow
this.optionsBplot = {
chart: {
type: 'boxPlotChart',
height: 500,
margin: {
top: 20,
right: 200,
bottom: 150,
left: 70
},
customColor: true,
color: ['rgba(123, 190, 50, 1)', 'rgba(123, 190, 50, 0.5)',
'rgba(123, 190, 50, 1)'], x: function (d) { return d.label; }, y: function (d) { return d.values.Q3; }, yAxis: { axisLabel: '# of Models',
axisLabelDistance: 10, tickFormat: function (d) { return d3.format(',1f')(d); } }, xAxis: { axisLabel: 'Gene', axisLabelDistance: 80, }, maxBoxWidth: 20, yDomain: [0, 500], callback: function () { d3.selectAll('.nv-axislabel').style('fill', '#003F95'); } } }; `