HTTP 1.1 support

[Genio]

Good evening, i'm tring to make a request to an API service, but i get always http status 426.
If i try the same python script on my pc and it works without any problem. After some search and test I understood that it depends on the HTTP protocol.
requests module use hardcoded HTTP1.0 and I need HTTP1.1

Do you know if there is a module I can use that support 1.1 version?