Paperwhite 3 & 4 with fw 5.13.5

I have a PW3 and a PW4 with firmware 5.13.5

I see that the latest version that is available to jailbrake is 5.13.3

so is there any way to downgrade the firmware to 5.13.3 ?

or any other way of jailbreaking these devices ?

is it possible to create a fake update with KindleTool and downgrade to 5.13.3 this way ?