T140 Broadcom NIC Driver

I'm wanting to update the Broadcom NetXtreme Gigabit Ethernet driver on T140 Server Standard 2019 units due to instability / spurious reboots.
I can only find a driver on the website, using the Service Tag, for Windows Server 2016 and none for Windows Server 2019. So, I've downloaded the one for 2016.

However, the new driver doesn't install and the system keeps pushing me toward the existing driver.

Existing is: 17.2.1.0 and the downloaded driver is 21.60.6.