Disable the SSH v1 login onto server ??

Hello All,
When today I have scanned my server for rootkit with rkhunter I got the follwing warning about SSH version 1 login:

Checking for allowed protocols... [ Warning (SSH v1 allowed) ]

I soewhat know that ssh v2 is more secure than ssh v1 to communicate.
Now how should I disable ssh v1 login onto my server?
I have following lines in my /etc/ssh/sshd_config about version:
# HostKey for protocol version 1
#HostKey /etc/ssh/ssh_host_key
# HostKeys for protocol version 2
#HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_dsa_key
Please help !!!

 

 

 

 

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