diff --git a/src/Provider/Mollie.php b/src/Provider/Mollie.php
index 428bc5a..daf21ab 100644
--- a/src/Provider/Mollie.php
+++ b/src/Provider/Mollie.php
@@ -66,25 +66,47 @@ class Mollie extends AbstractProvider
     /**
      * @var string
      */
-    private $mollieApiUrl;
+    private $mollieApiUrl = self::MOLLIE_API_URL;
 
     /**
      * @var string
      */
-    private $mollieWebUrl;
+    private $mollieWebUrl = self::MOLLIE_WEB_URL;
 
 	public function __construct(array $options = [], array $collaborators = [])
 	{
+        parent::__construct($options, $collaborators);
+
 		if (isset($options["clientId"]) && strpos($options["clientId"], self::CLIENT_ID_PREFIX) !== 0) {
 			throw new \DomainException("Mollie needs the client ID to be prefixed with " . self::CLIENT_ID_PREFIX . ".");
 		}
+	}
 
-		$this->mollieApiUrl = (isset($options['mollieApiUrl']) ? $options['mollieApiUrl'] : null) ?: self::MOLLIE_API_URL;
-		$this->mollieWebUrl = (isset($options['mollieWebUrl']) ? $options['mollieWebUrl'] : null) ?: self::MOLLIE_WEB_URL;
-		unset($options['mollieApiUrl'], $options['mollieWebUrl']);
+    /**
+     * Define Mollie api URL
+     *
+     * @param string $url
+     * @return Mollie
+     */
+    public function setMollieApiUrl ($url)
+    {
+        $this->mollieApiUrl = $url;
 
-		parent::__construct($options, $collaborators);
-	}
+        return $this;
+    }
+
+    /**
+     * Define Mollie web URL
+     *
+     * @param string $url
+     * @return Mollie
+     */
+    public function setMollieWebUrl ($url)
+    {
+        $this->mollieWebUrl = $url;
+
+        return $this;
+    }
 
 	/**
 	 * Returns the base URL for authorizing a client.
diff --git a/tests/src/Provider/MollieTest.php b/tests/src/Provider/MollieTest.php
index 70471cc..311e2bb 100644
--- a/tests/src/Provider/MollieTest.php
+++ b/tests/src/Provider/MollieTest.php
@@ -217,20 +217,16 @@ public function testUserData()
 
     public function testWhenDefiningADifferentMollieApiUrlThenUseThisOnApiCalls()
     {
-        $options = array_merge(['mollieApiUrl' => 'https://api.mollie.nl'], self::OPTIONS);
+        $this->provider->setMollieApiUrl('https://api.mollie.nl');
 
-        $provider = new Mollie($options);
-
-        $this->assertEquals('https://api.mollie.nl/oauth2/tokens', $provider->getBaseAccessTokenUrl([]));
+        $this->assertEquals('https://api.mollie.nl/oauth2/tokens', $this->provider->getBaseAccessTokenUrl([]));
     }
 
     public function testWhenDefiningADifferentMollieWebUrlThenUseThisForAuthorize()
     {
-        $options = array_merge(['mollieWebUrl' => 'https://www.mollie.nl'], self::OPTIONS);
-
-        $provider = new Mollie($options);
+        $this->provider->setMollieWebUrl('https://www.mollie.nl');
 
-        list($url) = explode('?', $provider->getAuthorizationUrl());
+        list($url) = explode('?', $this->provider->getAuthorizationUrl());
         $this->assertEquals('https://www.mollie.nl/oauth2/authorize', $url);
     }
 }