vulnerability scan for Check HTTP Strict Transport Security (HSTS) failed on Cisco ASA 5512x

Got a 5512x that is solely used for VPN (anyconnect). running software version 9.8(3)16

our security dept sent a scan report showing the HSTS check failed.

Did a little research (google) and it looks like this is a false positive.

But was wondering if there was something i can do to make it go away regardless and stop showing up on the scan.

thanks