Deprecated debug package: - symfony

Question

I have found a PHP Notice in the logs:
[info] User Deprecated: The "Symfony\Component\Debug\ErrorHandler" class is deprecated since Symfony 4.4, use "Symfony\Component\ErrorHandler\ErrorHandler" instead.
This code is invoked from Vendor folder, so I have been checking what package is using this package. I have found that the package symfony/monolog-bundle is the problem.
I am using:
https://packagist.org/packages/symfony/monolog-bundle#v3.6.0
It requires: https://packagist.org/packages/symfony/http-kernel#v4.3.11
It requires the problematic package: https://packagist.org/packages/symfony/debug
I have been trying to upgrade the package http-kernel to a newest version which not using symfony debug, it means from http-kernel>v5.0
I am executing this code and receiving this error:
MacBook-Pro-de-Pablo-Garces:cp-igw pgarces$ composer require "symfony/error-handler:5.0.*"
./composer.json has been updated
Running composer update symfony/error-handler
Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.
Problem 1
- symfony/http-kernel[v4.4.0, ..., v4.4.18] require symfony/error-handler ^4.4 -> found symfony/error-handler[v4.4.0, ..., v4.4.18] but it conflicts with your root composer.json require (5.0.*).
- Root composer.json requires symfony/http-kernel ^4.4 -> satisfiable by symfony/http-kernel[v4.4.0, ..., v4.4.18].
How can I solve it?