Windows 10 bootcamp nvidia drivers update

Hi, I am running a late 2013 27" iMac bootcamped with windows 10 with nvidia gtx775m graphics.

How can I update the nvidia drivers in windows? I have version 425.31 installed which was released 4th of November 2019. I can not get any newer versions for some reason. Does anyone know why or how I can update drivers?

As much of a bad experience as it is (due to the outdated graphics card), there are some games that I play but am now unable to as the game says I need newer drivers to launch the game and play it.

Thanks in advance for anyone's help.

Justin.