diff --git a/src/CurlDownloader.php b/src/CurlDownloader.php
index 7b1cc425c..9d835c145 100644
--- a/src/CurlDownloader.php
+++ b/src/CurlDownloader.php
@@ -46,7 +46,7 @@ class CurlDownloader
     public function __construct()
     {
         $this->multiHandle = $mh = curl_multi_init();
-        curl_multi_setopt($mh, CURLMOPT_PIPELINING, /*CURLPIPE_HTTP1 | CURLPIPE_MULTIPLEX*/ 3);
+        curl_multi_setopt($mh, CURLMOPT_PIPELINING, /*CURLPIPE_MULTIPLEX*/ 2);
         if (\defined('CURLMOPT_MAX_HOST_CONNECTIONS')) {
             curl_multi_setopt($mh, CURLMOPT_MAX_HOST_CONNECTIONS, 8);
         }