# How Do I Change My Master Password?

You can change the Master Password you use to unlock 1Password at any time by following these steps:

- Open the 1Password application and unlock your data file. Your 1Password data file must be unlocked in order to proceed.
- (optional) Click File > Backup Data File. This operation may take a few minutes so be patient. A Finder window will appear with the new backup file selected. Move or copy this file to a different location if you’d like. While not mandatory, this could be a life saver if you ever forget your new password.
- Click 1Password > Preferences > Security.
- Click the Change Master Password button and follow the instructions.

If your 1Password data file is stored in a Dropbox account folder please note:

- All computers that have 1Password installed and are using this same data file will also need to use the new Master Password.
- If you are using Dropbox syncing within any of our 1Password mobile apps you will need to update their saved Settings > Sync > Dropbox > Account > Password value to use this same new Master Password.

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