# NEXUS OSS Database Migration from Orient DB

## post by sakshumjain on Aug 21, 2024

Hello All,

Currently we have a Nexus Repository OSS 3.69.0 version with OrientDb as a database.

As per the latest announcement to upgrade to 3.71.* versions we need to upgrade the Db from OrientDb to either H2 or PostgreSQL. We want to use PostgreSql what are the steps needed to do this migration ? Is there any other options available to upgrade other then H2 or PostgreSQL ? After reading the documentation i found H2 is the only option available for Nexus OSS ? is my understanding is correct ?Please confirm

## post by mfrost on Aug 21, 2024

HI [@sakshumjain](https://community.sonatype.com/u/sakshumjain) - [here are instructions for upgrading from 3.69.0](https://help.sonatype.com/en/orient-pre-3-70-java-8-or-11.html) - you will need a Pro license to use PostgreSQL.

## post by sakshumjain on Aug 22, 2024

Thank You [@mfrost](https://community.sonatype.com/u/mfrost) for the response !!

So if we want to continue with OSS H2 is the only option available for us ?

## post by mfrost on Aug 22, 2024

That’s correct!