Bootstrap Table - Doesn't sort updated values by ajax JS

Question

I'm using Bootstrap Table: http://bootstrap-table.wenzhixin.net.cn/documentation/#methods

At the beginning I have a normal table with some values into it when I load my page.

Until here no problem.

Then, in the time, these values are modified with my JS (with ajax...).

My problem is here : When I sort by clicking on column, Table is sorted with values of the biggining values when page was loaded) and not with JS updated values...

Is there a "memorie" in bootstrap table ?

How to update this "memorie" and sort with updated values ?

Thanks