Hide nginx server header unde Alpine OS

When I use curl --head to test my website, it return the server information.

I followed this tutorial https://www.getpagespeed.com/server-setup/nginx/how-to-remove-the-server-header-in-nginx to hide the nginx server header.
But when I run the command yum install nginx-module-security-headers
, it returns yum: not found.

I also tried apk add nginx-module-security-headers, and it show that the package is missing.

I have used nginx:1.17.6-alpine as my base docker container, does anyone know how to hide the server from header under this Alpine?

Source: StackOverflow