進入源文件進行修改

leafpad /etc/apt/sources.list

（三選一即可）
  #kali官方源
    deb http://http.kali.org/kali kali-rolling main non-free contrib
    #中科大的源
    deb http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib
    deb http://mirrors.ustc.edu.cn/kali kali-rolling main contrib non-free
    deb-src http://mirrors.ustc.edu.cn/kali kali-rolling main contrib non-free
 

    deb http://mirrors.ustc.edu.cn/kali-security kali-current/updates main contrib non-free
    deb-src http://mirrors.ustc.edu.cn/kali-security kali-current/updates main contrib non-free
    #阿裏雲源
    deb http://mirrors.aliyun.com/kali sana main non-free contrib
    deb http://mirrors.aliyun.com/kali-security/ sana/updates main contrib non-free
 

    deb-src http://mirrors.aliyun.com/kali-security/ sana/updates main contrib non-free

apt-get update

ape-get upgrade

apt-get dist-upgrade

apt-get clean

kali修改更新源及更新