How to upgrade MariaDB from 10.1 to 10.3 on Debian 9 (error appears during installation)?

Question

linux

Good afternoon. I have a VPS, it has VestaCP, preinstalled with MariaDB 10.1. There was a task to update, but a certain error pops up during operation and I don’t know what it means.
Updated according to such manuals:
https://blog.programs74.ru/how-to-install-mariadb-...
https://www.howtoforge.com/community/threads/debia...
After the command I get an apt-get install mariadb-server -y
error:

Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 mariadb-server : Depends: mariadb-server-10.3 (>= 1:10.3.13+maria~stretch) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

I can not understand because of what does not allow to be updated a DB.

Answer 1

sudo apt-get --fix-broken install

Answer 2

It can only update from version 10.3.13 and higher, and you have 10.1
Update first to 10.3.13, find the distribution kit on the site of this DBMS. Then update to the latest. You understand like they write in English)