My bootstrap 4 dropdown is not working and I don't know how to fix it
I'm very new to HTML and I've been trying to get my dropdown to work for hours. I searched many posts facing similar problem but still can't find and solve the problem. I'm not sure if the problem is also caused by my script
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
<script src="https://ajax.googleleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
<header class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#" id="logo">Logo</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent">
<span class="navbar-toggler-icon"></span>
</button>
<nav class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item"><a class="nav-link active" href="#">Home <span class="sr-only">(current)</span></a></li>
<li class="nav-item"><a class="nav-link" href="#">Link</a></li>
<li class="nav-item">
<div class="dropdown">
<a href="#" class="nav-link dropdown-toggle" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a href="#" class="dropdown-item">Action</a>
<a href="#" class="dropdown-item">Another action</a>
<div class="dropdown-divider"></div>
<a href="#" class="dropdown-item">Something else here</a>
</div>
</div>
</li>
<li class="nav-item"><a class="nav-link" href="#">Disabled</a></li>
</ul>
</nav>
</header>
Thanks in advance!
I tried replacing data-toggle="dropdown" with data-bs-toggle="dropdown" but it doesn't work because I'm using bootstrap 4, directly Copy and paste the code from bootstrap and it still fails
