diff --git a/src/SPC/store/source/PhpSource.php b/src/SPC/store/source/PhpSource.php
index 5b4fd097..d3e9de43 100644
--- a/src/SPC/store/source/PhpSource.php
+++ b/src/SPC/store/source/PhpSource.php
@@ -19,8 +19,12 @@ class PhpSource extends CustomSourceBase
      */
     public function fetch(bool $force = false, ?array $config = null, int $lock_as = SPC_DOWNLOAD_SOURCE): void
     {
-        $major = defined('SPC_BUILD_PHP_VERSION') ? SPC_BUILD_PHP_VERSION : '8.3';
-        Downloader::downloadSource('php-src', self::getLatestPHPInfo($major), $force);
+        $major = defined('SPC_BUILD_PHP_VERSION') ? SPC_BUILD_PHP_VERSION : '8.4';
+        if ($major === '8.5') {
+            Downloader::downloadSource('php-src', ['type' => 'url', 'url' => 'https://downloads.php.net/~daniels/php-8.5.0alpha1.tar.xz'], $force);
+        } else {
+            Downloader::downloadSource('php-src', self::getLatestPHPInfo($major), $force);
+        }
     }
 
     /**