Tls1.1 to 1.2


I have an app who only talks on tls 1.1 and since few days, requested server now only talk on tls v1.2

I am using mitmproxy docker image, but it’s not working, and I am getting this error

Cannot establish TLS with website:443 (sni: website): TlsException(“SSL handshake error: Error([(‘SSL routines’, ‘ssl3_read_bytes’, ‘sslv3 alert handshake failure’)],)”,)

How can I force proxy to use tls 1.2 ?
I have try to set ssl_version_server: TLSv1_2 but same issue

I have found the same problem : Try to run old app with TLSv1.0 only against TLSv1.1+ only server

but no solution in the topic :’(

Thx for your help