Liquibase.io updates a database via task runners, which you or Liquibase can host. When you are using the Liquibase-hosted runners, add these runner IP addresses to the list of pre-approved resources that are considered safe to enter through your firewall to allow database updates to occur.
Liquibase.io hosted Runner IP addresses:
3.21.5.193
3.131.2.187
3.130.143.66
Note: For the Liquibase-hosted runners to work successfully, you must allow all three IP addresses through your firewall.