diff --git a/3rdparty b/3rdparty
index 070e933ab43..45d8fc9e09f 160000
--- a/3rdparty
+++ b/3rdparty
@@ -1 +1 @@
-Subproject commit 070e933ab4385021a7fc5259000f303507bedbbe
+Subproject commit 45d8fc9e09fbb4d3c4de5819afd9a6f72ce00f56
diff --git a/lib/private/Files/ObjectStore/S3ConnectionTrait.php b/lib/private/Files/ObjectStore/S3ConnectionTrait.php
index c7a5a8a1add..4609ad18905 100644
--- a/lib/private/Files/ObjectStore/S3ConnectionTrait.php
+++ b/lib/private/Files/ObjectStore/S3ConnectionTrait.php
@@ -11,7 +11,7 @@ use Aws\Credentials\Credentials;
 use Aws\Exception\CredentialsException;
 use Aws\S3\Exception\S3Exception;
 use Aws\S3\S3Client;
-use GuzzleHttp\Promise;
+use GuzzleHttp\Promise\Create;
 use GuzzleHttp\Promise\RejectedPromise;
 use OCP\ICertificateManager;
 use Psr\Log\LoggerInterface;
@@ -178,7 +178,7 @@ trait S3ConnectionTrait {
 			$secret = empty($this->params['secret']) ? null : $this->params['secret'];
 
 			if ($key && $secret) {
-				return Promise\promise_for(
+				return Create::promiseFor(
 					new Credentials($key, $secret)
 				);
 			}
diff --git a/lib/private/Files/ObjectStore/S3Signature.php b/lib/private/Files/ObjectStore/S3Signature.php
index fd24a34b090..e3a522b6581 100644
--- a/lib/private/Files/ObjectStore/S3Signature.php
+++ b/lib/private/Files/ObjectStore/S3Signature.php
@@ -93,7 +93,7 @@ class S3Signature implements SignatureInterface {
 			}
 		}
 
-		$queryString = http_build_query($query, null, '&', PHP_QUERY_RFC3986);
+		$queryString = http_build_query($query, '', '&', PHP_QUERY_RFC3986);
 
 		return $request->withUri($request->getUri()->withQuery($queryString));
 	}