CBC Ciphers removal from AIX Servers

[SCK]

Hi,
Nessus tool identified AIX servers are configured with vulnerable ciphers.As a remediation I have made proper changes in sshd_config file. Stop the sshd daemon and start sshd 
Still Issue persist. I have checked on one system post system reboot vulnerabilities went off. 
Is there any other way by which I can remove the vulnerabilities without rebooting the servers.
Sunil