We currently use postgres 9.6 locally [1], and 10.15 in stage/prod [2] but will be updating soon [3] to 10.17. We should keep our local image and what's used in Travis [4] in line with what's in RDS.

[1] https://github.com/RedHatInsights/insights-rbac/blob/master/docker-compose.yml#L66
[2] https://issues.redhat.com/browse/RHCLOUD-18953
[3] https://gitlab.cee.redhat.com/service/app-interface#rds-minor-version-upgrades
[4] https://github.com/RedHatInsights/insights-rbac/blob/master/.travis.yml#L13