Navbar'da Toggler kapanmıyor

<nav class="navbar bg-dark navbar-dark navbar-expand-ld justify-content-right">
 <div class="container-fluid">
 <a class="navbar-brand " href="#">Hoşgeldiniz</a>
 <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
 <span class="navbar-toggler-icon"></span>
 </button>
 <div class="collapse navbar-collapse" id="navbarSupportedContent">
 <ul class="navbar-nav me-auto mb-2 mb-lg-0">
 <li class="nav-item">
 <a class="nav-link" aria-current="page" href="#">Anasayfa</a>
 </li>
 <li class="nav-item">
 <a class="nav-link" href="#">Hakkımızda</a>
 </li>
 <li class="nav-item">
 <a class="nav-link" href="#">İletişim</a>
 </li>
 </ul>
 </div>
 </div>
 </nav>