Disable week SSL Chipers in Openfire?

Hi all… I’ve installed Openfire and it work gret. But when I did nessus scan it says that I need to disable weak SSL Chipers, can someone please tell how? I can see that the web server is Jetty, but I don’nt know where I can disable those chipers that I don’t want, in which config file ?

Thank you in advance

Regards