How to change/disable password complexity test when changing password?

Debian base

edit /etc/pam.d/common-password

$nano /etc/pam.d/common-password

go to

password        [success=1 default=ignore]      pam_unix.so obscure sha512

then change to
password        [success=1 default=ignore]      pam_unix.so minlen=1 sha512