diff --git a/doc/01-Installation.md b/doc/01-Installation.md
index d1bced4..4c8f86f 100644
--- a/doc/01-Installation.md
+++ b/doc/01-Installation.md
@@ -4,7 +4,7 @@
 Requirements
 ------------
 
-* Icinga Web 2 (>= 2.4.1)
+* Icinga Web 2 (>= 2.5.1)
 * PHP (>= 5.4 or 7.x)
 
 The Icinga Web 2 `monitoring` module needs to be configured and enabled.
diff --git a/library/Businessprocess/Web/Url.php b/library/Businessprocess/Web/Url.php
index cdd5efb..3c036d4 100644
--- a/library/Businessprocess/Web/Url.php
+++ b/library/Businessprocess/Web/Url.php
@@ -3,69 +3,17 @@
 namespace Icinga\Module\Businessprocess\Web;
 
 use Icinga\Application\Icinga;
-use Icinga\Exception\ProgrammingError;
 use Icinga\Web\Url as WebUrl;
-use Icinga\Web\UrlParams;
 
 /**
  * Class Url
  *
  * The main purpose of this class is to get unit tests running on CLI
- * Little code from Icinga\Web\Url has been duplicated, as neither fromPath()
- * nor getRequest() can be extended in a meaningful way at the time of this
- * writing
  *
  * @package Icinga\Module\Businessprocess\Web
  */
 class Url extends WebUrl
 {
-    public static function fromPath($url, array $params = array(), $request = null)
-    {
-        if ($request === null) {
-            $request = static::getRequest();
-        }
-
-        if (! is_string($url)) {
-            throw new ProgrammingError(
-                'url "%s" is not a string',
-                $url
-            );
-        }
-
-        $self = new static;
-
-        if ($url === '#') {
-            return $self->setPath($url);
-        }
-
-        $parts = parse_url($url);
-
-        $self->setBasePath($request->getBaseUrl());
-        if (isset($parts['path'])) {
-            $self->setPath($parts['path']);
-        }
-
-        if (isset($urlParts['query'])) {
-            $params = UrlParams::fromQueryString($urlParts['query'])->mergeValues($params);
-        }
-
-        if (isset($parts['fragment'])) {
-            $self->setAnchor($parts['fragment']);
-        }
-
-        $self->setParams($params);
-        return $self;
-    }
-
-    public function setBasePath($basePath)
-    {
-        if (property_exists($this, 'basePath')) {
-            parent::setBasePath($basePath);
-        } else {
-            return $this->setBaseUrl($basePath);
-        }
-    }
-
     protected static function getRequest()
     {
         $app = Icinga::app();