diff --git a/lib/private/Files/ObjectStore/S3ObjectTrait.php b/lib/private/Files/ObjectStore/S3ObjectTrait.php
index 7c46ba25c1..82ab4195e4 100644
--- a/lib/private/Files/ObjectStore/S3ObjectTrait.php
+++ b/lib/private/Files/ObjectStore/S3ObjectTrait.php
@@ -61,6 +61,7 @@ trait S3ObjectTrait {
 		}
 		$opts = [
 			'http' => [
+				'protocol_version'  => 1.1,
 				'header' => $headers
 			]
 		];