Learn how to update your self-hosted Ghost install to the latest major version.
Before updating to a new major version, you must update your site to the latest minor version, e.g if you are on 3.23.0 you need to be on 3.42.9 before updating to v5. You also need to make sure that your setup meets all the latest requirements. This guide will take you through everything step-by-step.
Updates are recommended for sites that are:
- Running Ghost version
3.0.0or higher and are using MySQL in production
- Development sites using any database
Make sure you can login to Ghost Admin before starting this process.
Switch to the user you used to setup your Ghost install for running Ghost commands:
sudo -i -u <user>
node -v to check your node version.
If less than 14, update node:
curl -fsSL [https://deb.nodesource.com/setup_14.x](https://deb.nodesource.com/setup_14.x) | sudo -E bash -
sudo apt-get install -y nodejs
Update Ghost CLI
Ghost-CLI is an npm module that can be updated using npm:
sudo npm install -g ghost-cli@latest
Update to the latest minor version
Before updating to a new major version, you must update your site to the latest minor version.
First, perform a preliminary backup of your site:
Then, update to the latest minor version:
- On Ghost 3.0 run
ghost update v3
- On Ghost 4.0 run
ghost update v4
If Ghost is not already running, run
ghost start, then login to Ghost Admin and check this update has worked before continuing.
Make a full backup
When performing manual updates it’s a good idea to make frequent backups, so if anything goes wrong, you’ll still have all your data.
Once you’re running the latest minor version, make a full backup using the following command to generate a download of your site’s data:
This creates a backup zip file of everything you need, including:
- Your content in JSON format
- A full member CSV export
- All themes that have been installed including your current active theme
- Images, files, and media (video and audio)
- A copy of
Read more about how to manually download your site data.
Check MySQL version
MySQL 8 is the only supported database in production. Use the following commands to check your database version:
ghost config database.client
This should output
mysql. If it says mysql, run
mysql --version to find the details of your mysql install.
If you’re already running MySQL 8, proceed to the next steps. Otherwise, read more about how to update or migrate your database if you’re using any other version.
Check for theme update requirements
To ensure your publication’s front-end doesn’t break, you may need to make some changes to your theme.
Ghost CLI will output a report with any theme incompatibility errors and recommendations, or you can upload your theme directly to the GScan theme testing tool.
Update to the latest major version
Before updating to a new major version, review breaking changes that might affect you.
Once you’re running the latest minor version, it’s time to update to the latest major version.
Finally, you can now run the update command again to upgrade to the latest major version:
The most common reason for an update failure is running out of memory, so make sure you have enough RAM or swap configured in advance.
Find your Ghost folder
ghost ls command anywhere on your server to find the details of your Ghost install.
Download your backup
If you need to move your backup between machines, run the
scp command on the machine you want to move the file to:
scp email@example.com:/var/www/ghost/backup-from[...].zip ~/Desktop
If an update fails you can start by forcing a retry to attempt the upgrade a second time.
ghost update --force
If something goes wrong, you can always revert to the previous stable version of Ghost.
ghost update --rollback
If you’re still having trouble, start by searching the Ghost forum to see if your issue has come up before.
If you need to downgrade Node, these are the steps:
sudo apt-get remove -y nodejs curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash - sudo apt-get install -y nodejs