increase serial value of bind zone

Hello to everyone
i have to change a value inside bind zone
the problem is how i can increase the serial of the zone?

example file attached

Just updating the serial of a zone file sounds not very useful.
Updating serials is only useful if other content has changed.
So, what else has changed? And where do those changes happen..

The answers to the above will enable us to help you better.

Dick

Hello
The step are
Add entro to the zone file
Increase zone serial
Reload

The step 1 and 3 are simplex
Increase the serial…i dont know how ti made the operation

I meant what does your playbook look like?
If you can share that would be helpful