--- title: Upgrade Postgres objective: Upgrade Fly instances with the latest version of Postgres. layout: framework_docs order: 60 toc: false --- You can upgrade a Fly Postgres cluster across minor Postgres app versions with [`fly image update`](/docs/flyctl/image-update/). This updates your Machines to the [latest release](https://github.com/fly-apps/postgres-flex/releases) of the [postgres-flex](https://github.com/fly-apps/postgres-flex) app. Check your current image with [`fly status`](/docs/flyctl/status/): ```cmd fly status -a <postgres-app-name> ``` And upgrade with: ```cmd fly image update -a <postgres-app-name> ``` The update only works if the major Postgres version in your existing Postgres app matches that in the newest Postgres app release, for example `postgres-flex:15.2` to `postgres-flex:15.3`. Upgrading Postgres across major versions is more complicated, and right now the way to do this is to provision a new cluster and restore a backup of your database data into it. <div class="important note"> **Important:** If you're running the legacy version of Fly Postgres, then you won't be able to use `fly image update` to upgrade to the new Postgres Flex app. You'll need to create a new Postgres app and import your data using the [`fly postgres import`](/docs/flyctl/postgres-import/) tool. To see your Postgres image and version, run `fly image show`. Legacy postgres images use the `flyio/postgres` repository, new Postgres Flex images use the `flyio/postgres-flex` repository. </div>