diff --git a/src/Symfony/Component/Security/CHANGELOG.md b/src/Symfony/Component/Security/CHANGELOG.md
index 51cb39d89e..618f51f8d2 100644
--- a/src/Symfony/Component/Security/CHANGELOG.md
+++ b/src/Symfony/Component/Security/CHANGELOG.md
@@ -4,6 +4,7 @@ CHANGELOG
 5.0.0
 -----
 
+ * The `LdapUserProvider` class has been removed, use `Symfony\Component\Ldap\Security\LdapUserProvider` instead.
  * The `FirewallMapInterface::getListeners()` method must return an array of 3 elements.
  * Removed the `ContextListener::setLogoutOnUserChange()` method.
  * Removed the `ListenerInterface`, turn your listeners into callables instead.
diff --git a/src/Symfony/Component/Security/Core/Tests/User/LdapUserProviderTest.php b/src/Symfony/Component/Security/Core/Tests/User/LdapUserProviderTest.php
deleted file mode 100644
index 90f74584b6..0000000000
--- a/src/Symfony/Component/Security/Core/Tests/User/LdapUserProviderTest.php
+++ /dev/null
@@ -1,354 +0,0 @@
-<?php
-
-/*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Symfony\Component\Security\Core\Tests\User;
-
-use PHPUnit\Framework\TestCase;
-use Symfony\Component\Ldap\Adapter\CollectionInterface;
-use Symfony\Component\Ldap\Adapter\QueryInterface;
-use Symfony\Component\Ldap\Entry;
-use Symfony\Component\Ldap\Exception\ConnectionException;
-use Symfony\Component\Ldap\LdapInterface;
-use Symfony\Component\Security\Core\User\LdapUserProvider;
-
-/**
- * @group legacy
- * @requires extension ldap
- */
-class LdapUserProviderTest extends TestCase
-{
-    public function testLoadUserByUsernameFailsIfCantConnectToLdap()
-    {
-        $this->expectException('Symfony\Component\Security\Core\Exception\UsernameNotFoundException');
-        $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
-        $ldap
-            ->expects($this->once())
-            ->method('bind')
-            ->willThrowException(new ConnectionException())
-        ;
-
-        $provider = new LdapUserProvider($ldap, 'ou=MyBusiness,dc=symfony,dc=com');
-        $provider->loadUserByUsername('foo');
-    }
-
-    public function testLoadUserByUsernameFailsIfNoLdapEntries()
-    {
-        $this->expectException('Symfony\Component\Security\Core\Exception\UsernameNotFoundException');
-        $result = $this->getMockBuilder(CollectionInterface::class)->getMock();
-        $query = $this->getMockBuilder(QueryInterface::class)->getMock();
-        $query
-            ->expects($this->once())
-            ->method('execute')
-            ->willReturn($result)
-        ;
-        $result
-            ->expects($this->once())
-            ->method('count')
-            ->willReturn(0)
-        ;
-        $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
-        $ldap
-            ->expects($this->once())
-            ->method('escape')
-            ->willReturn('foo')
-        ;
-        $ldap
-            ->expects($this->once())
-            ->method('query')
-            ->willReturn($query)
-        ;
-
-        $provider = new LdapUserProvider($ldap, 'ou=MyBusiness,dc=symfony,dc=com');
-        $provider->loadUserByUsername('foo');
-    }
-
-    public function testLoadUserByUsernameFailsIfMoreThanOneLdapEntry()
-    {
-        $this->expectException('Symfony\Component\Security\Core\Exception\UsernameNotFoundException');
-        $result = $this->getMockBuilder(CollectionInterface::class)->getMock();
-        $query = $this->getMockBuilder(QueryInterface::class)->getMock();
-        $query
-            ->expects($this->once())
-            ->method('execute')
-            ->willReturn($result)
-        ;
-        $result
-            ->expects($this->once())
-            ->method('count')
-            ->willReturn(2)
-        ;
-        $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
-        $ldap
-            ->expects($this->once())
-            ->method('escape')
-            ->willReturn('foo')
-        ;
-        $ldap
-            ->expects($this->once())
-            ->method('query')
-            ->willReturn($query)
-        ;
-
-        $provider = new LdapUserProvider($ldap, 'ou=MyBusiness,dc=symfony,dc=com');
-        $provider->loadUserByUsername('foo');
-    }
-
-    public function testLoadUserByUsernameFailsIfMoreThanOneLdapPasswordsInEntry()
-    {
-        $this->expectException('Symfony\Component\Security\Core\Exception\InvalidArgumentException');
-        $result = $this->getMockBuilder(CollectionInterface::class)->getMock();
-        $query = $this->getMockBuilder(QueryInterface::class)->getMock();
-        $query
-            ->expects($this->once())
-            ->method('execute')
-            ->willReturn($result)
-        ;
-        $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
-        $result
-            ->expects($this->once())
-            ->method('offsetGet')
-            ->with(0)
-            ->willReturn(new Entry('foo', [
-                    'sAMAccountName' => ['foo'],
-                    'userpassword' => ['bar', 'baz'],
-                ]
-            ))
-        ;
-        $result
-            ->expects($this->once())
-            ->method('count')
-            ->willReturn(1)
-        ;
-        $ldap
-            ->expects($this->once())
-            ->method('escape')
-            ->willReturn('foo')
-        ;
-        $ldap
-            ->expects($this->once())
-            ->method('query')
-            ->willReturn($query)
-        ;
-
-        $provider = new LdapUserProvider($ldap, 'ou=MyBusiness,dc=symfony,dc=com', null, null, [], 'sAMAccountName', '({uid_key}={username})', 'userpassword');
-        $this->assertInstanceOf(
-            'Symfony\Component\Security\Core\User\User',
-            $provider->loadUserByUsername('foo')
-        );
-    }
-
-    public function testLoadUserByUsernameShouldNotFailIfEntryHasNoUidKeyAttribute()
-    {
-        $result = $this->getMockBuilder(CollectionInterface::class)->getMock();
-        $query = $this->getMockBuilder(QueryInterface::class)->getMock();
-        $query
-            ->expects($this->once())
-            ->method('execute')
-            ->willReturn($result)
-        ;
-        $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
-        $result
-            ->expects($this->once())
-            ->method('offsetGet')
-            ->with(0)
-            ->willReturn(new Entry('foo', []))
-        ;
-        $result
-            ->expects($this->once())
-            ->method('count')
-            ->willReturn(1)
-        ;
-        $ldap
-            ->expects($this->once())
-            ->method('escape')
-            ->willReturn('foo')
-        ;
-        $ldap
-            ->expects($this->once())
-            ->method('query')
-            ->willReturn($query)
-        ;
-
-        $provider = new LdapUserProvider($ldap, 'ou=MyBusiness,dc=symfony,dc=com', null, null, [], 'sAMAccountName', '({uid_key}={username})');
-        $this->assertInstanceOf(
-            'Symfony\Component\Security\Core\User\User',
-            $provider->loadUserByUsername('foo')
-        );
-    }
-
-    public function testLoadUserByUsernameFailsIfEntryHasNoPasswordAttribute()
-    {
-        $this->expectException('Symfony\Component\Security\Core\Exception\InvalidArgumentException');
-        $result = $this->getMockBuilder(CollectionInterface::class)->getMock();
-        $query = $this->getMockBuilder(QueryInterface::class)->getMock();
-        $query
-            ->expects($this->once())
-            ->method('execute')
-            ->willReturn($result)
-        ;
-        $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
-        $result
-            ->expects($this->once())
-            ->method('offsetGet')
-            ->with(0)
-            ->willReturn(new Entry('foo', [
-                    'sAMAccountName' => ['foo'],
-                ]
-            ))
-        ;
-        $result
-            ->expects($this->once())
-            ->method('count')
-            ->willReturn(1)
-        ;
-        $ldap
-            ->expects($this->once())
-            ->method('escape')
-            ->willReturn('foo')
-        ;
-        $ldap
-            ->expects($this->once())
-            ->method('query')
-            ->willReturn($query)
-        ;
-
-        $provider = new LdapUserProvider($ldap, 'ou=MyBusiness,dc=symfony,dc=com', null, null, [], 'sAMAccountName', '({uid_key}={username})', 'userpassword');
-        $this->assertInstanceOf(
-            'Symfony\Component\Security\Core\User\User',
-            $provider->loadUserByUsername('foo')
-        );
-    }
-
-    public function testLoadUserByUsernameIsSuccessfulWithoutPasswordAttribute()
-    {
-        $result = $this->getMockBuilder(CollectionInterface::class)->getMock();
-        $query = $this->getMockBuilder(QueryInterface::class)->getMock();
-        $query
-            ->expects($this->once())
-            ->method('execute')
-            ->willReturn($result)
-        ;
-        $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
-        $result
-            ->expects($this->once())
-            ->method('offsetGet')
-            ->with(0)
-            ->willReturn(new Entry('foo', [
-                    'sAMAccountName' => ['foo'],
-                ]
-            ))
-        ;
-        $result
-            ->expects($this->once())
-            ->method('count')
-            ->willReturn(1)
-        ;
-        $ldap
-            ->expects($this->once())
-            ->method('escape')
-            ->willReturn('foo')
-        ;
-        $ldap
-            ->expects($this->once())
-            ->method('query')
-            ->willReturn($query)
-        ;
-
-        $provider = new LdapUserProvider($ldap, 'ou=MyBusiness,dc=symfony,dc=com');
-        $this->assertInstanceOf(
-            'Symfony\Component\Security\Core\User\User',
-            $provider->loadUserByUsername('foo')
-        );
-    }
-
-    public function testLoadUserByUsernameIsSuccessfulWithoutPasswordAttributeAndWrongCase()
-    {
-        $result = $this->getMockBuilder(CollectionInterface::class)->getMock();
-        $query = $this->getMockBuilder(QueryInterface::class)->getMock();
-        $query
-            ->expects($this->once())
-            ->method('execute')
-            ->willReturn($result)
-        ;
-        $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
-        $result
-            ->expects($this->once())
-            ->method('offsetGet')
-            ->with(0)
-            ->willReturn(new Entry('foo', [
-                    'sAMAccountName' => ['foo'],
-                ]
-            ))
-        ;
-        $result
-            ->expects($this->once())
-            ->method('count')
-            ->willReturn(1)
-        ;
-        $ldap
-            ->expects($this->once())
-            ->method('escape')
-            ->willReturn('Foo')
-        ;
-        $ldap
-            ->expects($this->once())
-            ->method('query')
-            ->willReturn($query)
-        ;
-
-        $provider = new LdapUserProvider($ldap, 'ou=MyBusiness,dc=symfony,dc=com');
-        $this->assertSame('foo', $provider->loadUserByUsername('Foo')->getUsername());
-    }
-
-    public function testLoadUserByUsernameIsSuccessfulWithPasswordAttribute()
-    {
-        $result = $this->getMockBuilder(CollectionInterface::class)->getMock();
-        $query = $this->getMockBuilder(QueryInterface::class)->getMock();
-        $query
-            ->expects($this->once())
-            ->method('execute')
-            ->willReturn($result)
-        ;
-        $ldap = $this->getMockBuilder(LdapInterface::class)->getMock();
-        $result
-            ->expects($this->once())
-            ->method('offsetGet')
-            ->with(0)
-            ->willReturn(new Entry('foo', [
-                    'sAMAccountName' => ['foo'],
-                    'userpassword' => ['bar'],
-                    'email' => ['elsa@symfony.com'],
-                ]
-            ))
-        ;
-        $result
-            ->expects($this->once())
-            ->method('count')
-            ->willReturn(1)
-        ;
-        $ldap
-            ->expects($this->once())
-            ->method('escape')
-            ->willReturn('foo')
-        ;
-        $ldap
-            ->expects($this->once())
-            ->method('query')
-            ->willReturn($query)
-        ;
-
-        $provider = new LdapUserProvider($ldap, 'ou=MyBusiness,dc=symfony,dc=com', null, null, [], 'sAMAccountName', '({uid_key}={username})', 'userpassword', ['email']);
-        $this->assertInstanceOf(
-            'Symfony\Component\Security\Core\User\User',
-            $provider->loadUserByUsername('foo')
-        );
-    }
-}
diff --git a/src/Symfony/Component/Security/Core/User/LdapUserProvider.php b/src/Symfony/Component/Security/Core/User/LdapUserProvider.php
deleted file mode 100644
index 1eea0f9304..0000000000
--- a/src/Symfony/Component/Security/Core/User/LdapUserProvider.php
+++ /dev/null
@@ -1,61 +0,0 @@
-<?php
-
-/*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Symfony\Component\Security\Core\User;
-
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', LdapUserProvider::class, BaseLdapUserProvider::class), E_USER_DEPRECATED);
-
-use Symfony\Component\Ldap\Entry;
-use Symfony\Component\Ldap\Security\LdapUserProvider as BaseLdapUserProvider;
-use Symfony\Component\Security\Core\Exception\UnsupportedUserException;
-
-/**
- * LdapUserProvider is a simple user provider on top of ldap.
- *
- * @author Grégoire Pineau <lyrixx@lyrixx.info>
- * @author Charles Sarrazin <charles@sarraz.in>
- *
- * @deprecated since Symfony 4.4, use "Symfony\Component\Ldap\Security\LdapUserProvider" instead
- */
-class LdapUserProvider extends BaseLdapUserProvider
-{
-    /**
-     * {@inheritdoc}
-     */
-    public function refreshUser(UserInterface $user)
-    {
-        if (!$user instanceof User) {
-            throw new UnsupportedUserException(sprintf('Instances of "%s" are not supported.', \get_class($user)));
-        }
-
-        return new User($user->getUsername(), null, $user->getRoles());
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function supportsClass(string $class)
-    {
-        return 'Symfony\Component\Security\Core\User\User' === $class;
-    }
-
-    /**
-     * Loads a user from an LDAP entry.
-     *
-     * @return User
-     */
-    protected function loadUser(string $username, Entry $entry)
-    {
-        $ldapUser = parent::loadUser($username, $entry);
-
-        return new User($ldapUser->getUsername(), $ldapUser->getPassword(), $ldapUser->getRoles(), true, true, true, true, $ldapUser->getExtraFields());
-    }
-}