diff --git a/src/php/access/PropertyAccess.php b/src/php/access/PropertyAccess.php
index fe09704..ec823c1 100644
--- a/src/php/access/PropertyAccess.php
+++ b/src/php/access/PropertyAccess.php
@@ -6,9 +6,9 @@ use ReflectionException;
 use ReflectionProperty;
 
 class PropertyAccess extends AbstractAccess {
-  function __construct(object &$object, $name, ?array $params=null) {
+  function __construct(object $object, $name, ?array $params=null) {
     parent::__construct($params);
-    $this->object =& $object;
+    $this->object = $object;
     $this->name = $name;
     $class = new ReflectionClass($object);
     try {
@@ -32,8 +32,8 @@ class PropertyAccess extends AbstractAccess {
 
   protected bool $allowFalse;
 
-  function reset(object &$object): self {
-    $this->object =& $object;
+  function reset(object $object): self {
+    $this->object = $object;
     return $this;
   }