To update the upload limit on Plesk please follow the below instructions.
Go to your subdomain on Plesk then press PHP Settings.
![](https://handbook.gooey.dev/wp-content/uploads/2021/07/YxjepX-1024x254.png)
Then change the following two value, so if you want it to be 20MB change them both to 20.
![](https://handbook.gooey.dev/wp-content/uploads/2021/07/a1YOIC.png)
Then press OK and the server will restart with the new upload limit on the subdomain.