Order issue in groupedboxplot (StatsPlot.jl)

I’m using groupedboxplot to plot boxplot for my data but while doing so I see that order in legend and in plot itself is not correct. It should be P_9, P_10, P_11 P_12, P_13 while I get.

How can I change this ? and plot in above mentioned order? my data is in correct order.

Thank you

Same issue as here