How to modify code under vendor/ directory

Checking generated html of my laravel 5.7 app in https://validator.w3.org I got errors like :

Error: Bad value navigation for attribute role on element ul.
From line 353, column 21; to line 353, column 61
          <ul class="pagination" role="navigation">↩    

Searching for similar code in my application I found several files like vendor/laravel/framework/src/Illuminate/Pagination/resources/views/bootstrap-4.blade.php with code

@if ($paginator->hasPages())
    <ul class="pagination" role="navigation">

as this file is under /vendor directory, if there is a way to fix it for my app ?

Thanks!

via Chebli Mohamed