Old Openvpn version

Hi Guys,
Is it possible to install an older openvpn version like 2.3.10 to almalinux?

My old client can’t connect to server with openvpn 2.4.x version

Actually they can connect to server with ubuntu16 / openvpn 2.3.10 / openssl 1.0.2g

I can’t update all client

Just for find an other way… thx