diff --git a/composer.json b/composer.json
index 904dfca..73f77a4 100644
--- a/composer.json
+++ b/composer.json
@@ -4,7 +4,7 @@
 	"license": "Apache-2.0",
 	"require": {
 		"php": ">=7",
-		"voku/httpful": "0.2.*"
+		"voku/httpful": "0.4.*"
 	},
 	"require-dev": {
 		"phpunit/phpunit": "^6.4"
diff --git a/tests/PiwikTest.php b/tests/PiwikTest.php
index bd0cb1e..afbec53 100644
--- a/tests/PiwikTest.php
+++ b/tests/PiwikTest.php
@@ -6,7 +6,7 @@
 
 class PiwikTest extends \PHPUnit\Framework\TestCase
 {
-	const TEST_SITE_URL = 'https://demo.piwik.org/';
+	const TEST_SITE_URL = 'https://demo.matomo.org/';
 
 	const TEST_SITE_ID = 7;