To change permalinks in WordPress, follow these steps:
1. Log in to your WordPress dashboard.
2. Click on Settings > Permalinks.
3. Choose the permalink structure you want to use. WordPress offers several options including post name, month and name, and custom.
4. If you choose the custom option, you can create your own permalink structure using specific tags such as postname or category.
5. Click on the Save Changes button to apply your new permalink structure.
Note: If you change your permalink structure, make sure to set up proper redirects to avoid any broken links or 404 errors.