upgrade issues

I have found out that my virtual host set up (Xampp) is not working as expected:

<VirtualHost *:80>
ServerName ciapp.localhost
ServerAlias ciapp.localhost
DocumentRoot "c:/xampp/htdocs/ciapp/public"

<Directory "c:/xampp/htdocs/ciapp/public">
Require all granted
AllowOverride all
</Directory>

</VirtualHost>

<VirtualHost *:80>
ServerName ci4_news.localhost
ServerAlias ci4_news.localhost
DocumentRoot "c:/xampp/htdocs/ci4_news/public"

<Directory "c:/xampp/htdocs/ci4_news/public">
Require all granted
AllowOverride all
</Directory>

the ci4_news proiect is picking up the settings from ciapp.localhost. How can I solve this issue ? what value/parameter in codeigniter correspondents with servername in httpd-vhosts.config?