Laravel valet always asks password

After reinstalling macOS, I started setup my dev environment based on Laracasts "Setup a mac dev machine from scratch". At the previous time when I installed php/valet/composer etc, everything was fine, but now the terminal (in every new session) always asks password when I type valet.

I added the composer path to .zshrc

export PATH=$HOME/bin:/usr/local/bin:$HOME/.composer/vendor/bin:$PATH