diff --git a/src/Symfony/Component/Security/Http/Firewall/ContextListener.php b/src/Symfony/Component/Security/Http/Firewall/ContextListener.php
index 6a394c82bc695..4d6f3f81f1b49 100644
--- a/src/Symfony/Component/Security/Http/Firewall/ContextListener.php
+++ b/src/Symfony/Component/Security/Http/Firewall/ContextListener.php
@@ -17,6 +17,8 @@
 use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\Security\Core\Authentication\AuthenticationTrustResolver;
 use Symfony\Component\Security\Core\Authentication\AuthenticationTrustResolverInterface;
+use Symfony\Component\Security\Core\Authentication\Token\AnonymousToken;
+use Symfony\Component\Security\Core\Authentication\Token\RememberMeToken;
 use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
 use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
 use Symfony\Component\Security\Core\Exception\UsernameNotFoundException;
@@ -60,7 +62,7 @@ public function __construct(TokenStorageInterface $tokenStorage, array $userProv
         $this->sessionKey = '_security_'.$contextKey;
         $this->logger = $logger;
         $this->dispatcher = $dispatcher;
-        $this->trustResolver = $trustResolver ?: new AuthenticationTrustResolver('Symfony\Component\Security\Core\Authentication\Token\AnonymousToken', 'Symfony\Component\Security\Core\Authentication\Token\RememberMeToken');
+        $this->trustResolver = $trustResolver ?: new AuthenticationTrustResolver(AnonymousToken::class, RememberMeToken::class);
     }
 
     /**