Asterisk TLS cipher limitation

Hello

I am looking for a way to limit asterisk TLS negotiation ciphers.

When I run “pjsip list ciphers” I see a lot of cipher but I want to block all negotiontions with cipher RC4.

When I put only one cipher to transport config

[transport-ws]
type=transport
protocol=ws
bind=0.0.0.0:8088

[transport-wss]
type=transport
protocol=wss
;bind=0.0.0.0
bind=0.0.0.0:8089
cipher=ECDHE-RSA-AES256-GCM-SHA384
method=tlsv1

it still response to connect attempts with RC4 cipher ;

openssl s_client -connect localhost:8089 -tls1 -cipher RC4-SHA

New, TLSv1/SSLv3, Cipher is RC4-SHA
Server public key is 2048 bit
Secure Renegotiation IS supported
Compression: NONE

I am looking for a solution. Would you please advise a way to achieve it.

Regards.