diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 536c5356a..67540409e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -49,4 +49,6 @@ jobs:
         run: npm run test:unit
 
       - name: PHP Unit Tests
-        run: make test
+        run: |
+          git clone --depth 1 https://github.com/nextcloud/server.git -b v23.0.0
+          make test
diff --git a/bootstrap.php b/bootstrap.php
index a53a72fdd..684dcbc01 100644
--- a/bootstrap.php
+++ b/bootstrap.php
@@ -3,11 +3,16 @@
 use Composer\Autoload\ClassLoader;
 
 include_once __DIR__.'/vendor/autoload.php';
+if (file_exists(__DIR__ . '/server')) {
+	$serverPath = __DIR__ . '/server';
+} else {
+	$serverPath = __DIR__ . '/../..';
+}
 
 $classLoader = new ClassLoader();
 $classLoader->addPsr4("OCA\\OpenProject\\Service\\", __DIR__ . '/lib/Service', true);
-$classLoader->addPsr4("OCP\\", __DIR__ . '/../../lib/public', true);
-$classLoader->addPsr4("OC\\", __DIR__ . '/../../lib/private', true);
+$classLoader->addPsr4("OCP\\",  $serverPath . '/lib/public', true);
+$classLoader->addPsr4("OC\\",  $serverPath . '/lib/private', true);
 $classLoader->addPsr4("OCA\\OpenProject\\AppInfo\\", __DIR__ . '/lib/AppInfo', true);
 $classLoader->register();