nginx configuration of site where changes to static files aren't reflected through nginx

gistfile1.txt

server {
	server_name foo;
	listen 80;

	error_log /var/log/nginx/foo.error;
	access_log /var/log/nginx/foo.access main;

	root /srv/www;

	location ~* \.(png|jpg|jpeg|gif|ico)$ { # TODO Add CSS and JS to the mix for production
		expires max;
	}

	location = /robots.txt {
		allow all;
		access_log off;
		log_not_found off;
	}

	location / {
		index index.html;
	}
}