PHP and Web Server version disclosed on leasewebnoc.com

HI Version disclosure is happening on leasewebnoc.com GET /en/contact HTTP/1.1 Host: leasewebnoc.com User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:44.0) Gecko/20100101 Firefox/44.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Referer: http://leasewebnoc.com/en/contact Connection: keep-alive RESPONSE HTTP/1.1 200 OK Vary: User-Agent Date: Fri, 19 Feb 2016 14:28:18 GMT Server: Apache/2.2.22 (Debian) X-Powered-By: PHP/5.4.4-14+deb7u10 Cache-Control: public, s-maxage=60 X-Content-Digest: ena7722855a0e94756977e38b9a997613ab634faf5 Age: 0 Content-Type: text/html; charset=UTF-8 Content-Length: 3712