diff --git a/system/Config/Services.php b/system/Config/Services.php
index 0daaa72c957f..c4c65a51252d 100644
--- a/system/Config/Services.php
+++ b/system/Config/Services.php
@@ -592,7 +592,10 @@ public static function redirectResponse(\Config\App $config = null, $getShared =
 			$config = new \Config\App();
 		}
 
-		return new \CodeIgniter\HTTP\RedirectResponse($config);
+		$response = new \CodeIgniter\HTTP\RedirectResponse($config);
+		$response->setProtocolVersion(self::request()->getProtocolVersion());
+
+		return $response;
 	}
 
 	//--------------------------------------------------------------------