How to get rid of PostgreSQL version alert in bitbucket web GUI

[Andy Cravens]

Installed bitbucket 7.2.3 on Ubuntu 20.04 and PostgreSQL 12.2.0.  I saw they don't support PostgreSQL 12 so I downgraded to PostgreSQL to 11.  However, that red alert in the web GUI will not go away.  Somehow, bitbucket still thinks I'm using PostgreSQL 12.2.0 when I'm actually not.  How do you get rid of the alert?  The alert reads:

Alerts

Support for PostgreSQL 12.2.0 is not tested and may be broken without notice.  You should migrate to a supported database.

By the way, I'm just wondering if bitbucket would work fine on PostgreSQL 12.