Just add following lines to vhost.conf
SSLEngine on
SSLProtocol TLSv1.2 TLSv1.1
SSLProxyProtocol TLSv1.2 TLSv1.1
SSLHonorCipherOrder on
SSLCipherSuite EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:ECDHE-RSA-AES128-SHA:DHE-RSA-AES128-GCM-SHA256:AES256+EDH:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA25