diff --git a/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php b/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php
index 992e2c4882..a213c44193 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php
@@ -1676,7 +1676,7 @@ class RequestTest extends \PHPUnit_Framework_TestCase
         $request = Request::create('/');
         $request->headers->set('host', $host);
         $this->assertEquals($host, $request->getHost());
-        $this->assertLessThan(3, microtime(true) - $start);
+        $this->assertLessThan(5, microtime(true) - $start);
     }
 
     /**