WordPress asks me for FTP for major version upgrade

Hi,

I am running WordPress 4.7.2 on my CentOS 7 server. The ownership and file permissions look okay to me but WP still asks me for FTP instead of directly upgrading my install.

Here’s how permissions look – https://gist.github.com/sudhirkhanger/3bed03ff674ba2f11821515ff3f94008