How can I increase the Gatling request timeout?

Hello,
I have an endpoint that could give a response in more than 30 seconds.
How can I configure Gatling to wait longer for the response?

Here is an example:

https://gatling.io/docs/gatling/reference/current/core/configuration/#gatling-conf

Note: the default request timeout is 60s.
Your errors are 503/Service Unavailable, which means your target endpoint is under maintenance/being rebooted, not request timeouts.