# Backup Failed error

**URL:** https://meta.discourse.org/t/backup-failed-error/365262
**Category:** Support
**Created:** [May 8, 2025, 5:58am UTC](https://meta.discourse.org/t/backup-failed-error/365262 "2025-05-08T05:58:23Z")
**Posts on this page:** 1
**Showing post:** 5

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### Author: ![NateDhaliwal](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/natedhaliwal/32/313494_2.png) [@NateDhaliwal](https://meta.discourse.org/u/NateDhaliwal)
#### Post date: [May 8, 2025, 11:09am UTC](https://meta.discourse.org/t/backup-failed-error/365262/5 "2025-05-08T11:09:46Z")

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Perhaps it is the fact that IIRC Discourse has support for up to Postgres 15?

> [@PostgreSQL 15 update](https://meta.discourse.org/t/postgresql-15-update/349515):
>
> warning WARNING! If your database is very large, you will need a lot of extra disk space (2x database size) and should be very careful with this upgrade! We’ve just landed changes to upgrade our Docker image to PostgreSQL 15. Any site admins rebuilding Discourse from the command line will be upgraded to PostgreSQL 15 from the previous PostgreSQL 13. Note that if you held back from upgrading when the PostgreSQL 13 update [happened back in 2020](https://meta.discourse.org/t/postgresql-13-update/172563), you can skip that upgrade and go straight to P…

And perhaps it is also the fact that the two database versions are not the same (one 16 and the other 15)?

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