[Koha] RabbitMQ is using a lot of virtual memory

Hi. I have just seen that my server is using a lot of virtual memory recently and that RabbitMQ is the process which is using most of it (more than 3 GB). Before I try and make changes on my own, I would like to ask if someone can give me a recommendation what to do. I'm running Koha on Ubuntu 18.04. Thank you Isabel Pineda