diff --git a/packages/NodeTypeResolver/Node/AttributeKey.php b/packages/NodeTypeResolver/Node/AttributeKey.php
index f8f01d316a3c..f5127361f9da 100644
--- a/packages/NodeTypeResolver/Node/AttributeKey.php
+++ b/packages/NodeTypeResolver/Node/AttributeKey.php
@@ -188,4 +188,8 @@ final class AttributeKey
      * @var string
      */
     public const IS_IN_LOOP = 'is_in_loop';
+    /**
+     * @var string
+     */
+    public const IS_UNSET_VAR = 'is_unset_var';
 }
diff --git a/packages/NodeTypeResolver/PHPStan/Scope/NodeVisitor/ContextNodeVisitor.php b/packages/NodeTypeResolver/PHPStan/Scope/NodeVisitor/ContextNodeVisitor.php
index aaeae07b37be..3099f6753f52 100644
--- a/packages/NodeTypeResolver/PHPStan/Scope/NodeVisitor/ContextNodeVisitor.php
+++ b/packages/NodeTypeResolver/PHPStan/Scope/NodeVisitor/ContextNodeVisitor.php
@@ -12,6 +12,7 @@
 use PhpParser\Node\Stmt\For_;
 use PhpParser\Node\Stmt\Foreach_;
 use PhpParser\Node\Stmt\If_;
+use PhpParser\Node\Stmt\Unset_;
 use PhpParser\Node\Stmt\While_;
 use PhpParser\NodeTraverser;
 use PhpParser\NodeVisitorAbstract;
@@ -43,6 +44,11 @@ public function enterNode(Node $node) : ?Node
             });
             return null;
         }
+        if ($node instanceof Unset_) {
+            foreach ($node->vars as $var) {
+                $var->setAttribute(AttributeKey::IS_UNSET_VAR, \true);
+            }
+        }
         return null;
     }
 }
diff --git a/src/Application/VersionResolver.php b/src/Application/VersionResolver.php
index af6298b294f0..adc53dd40854 100644
--- a/src/Application/VersionResolver.php
+++ b/src/Application/VersionResolver.php
@@ -19,12 +19,12 @@ final class VersionResolver
      * @api
      * @var string
      */
-    public const PACKAGE_VERSION = '805b7b7d39fcd989873452ddbbd57e2a76150022';
+    public const PACKAGE_VERSION = '3806bb8f05a822d081a69f735745ae2f14caf657';
     /**
      * @api
      * @var string
      */
-    public const RELEASE_DATE = '2023-06-18 13:18:11';
+    public const RELEASE_DATE = '2023-06-18 16:40:15';
     /**
      * @var int
      */
diff --git a/src/NodeManipulator/PropertyManipulator.php b/src/NodeManipulator/PropertyManipulator.php
index 50531cc9e22c..7773b44cae8f 100644
--- a/src/NodeManipulator/PropertyManipulator.php
+++ b/src/NodeManipulator/PropertyManipulator.php
@@ -168,8 +168,7 @@ public function isPropertyChangeableExceptConstructor(Class_ $class, $propertyOr
             if ($this->assignManipulator->isLeftPartOfAssign($propertyFetch)) {
                 return \true;
             }
-            $isInUnset = (bool) $this->betterNodeFinder->findParentType($propertyFetch, Unset_::class);
-            if ($isInUnset) {
+            if ($propertyFetch->getAttribute(AttributeKey::IS_UNSET_VAR) === \true) {
                 return \true;
             }
         }
diff --git a/vendor/autoload.php b/vendor/autoload.php
index 2d43fee6e2ba..18d3078419b0 100644
--- a/vendor/autoload.php
+++ b/vendor/autoload.php
@@ -22,4 +22,4 @@
 
 require_once __DIR__ . '/composer/autoload_real.php';
 
-return ComposerAutoloaderInit470ad92e04ebe7807935539568e0c68f::getLoader();
+return ComposerAutoloaderInitcf1d947e9768c34d09a4e46d10546389::getLoader();
diff --git a/vendor/composer/autoload_real.php b/vendor/composer/autoload_real.php
index caf48af1a40b..c7e3e5253327 100644
--- a/vendor/composer/autoload_real.php
+++ b/vendor/composer/autoload_real.php
@@ -2,7 +2,7 @@
 
 // autoload_real.php @generated by Composer
 
-class ComposerAutoloaderInit470ad92e04ebe7807935539568e0c68f
+class ComposerAutoloaderInitcf1d947e9768c34d09a4e46d10546389
 {
     private static $loader;
 
@@ -22,17 +22,17 @@ public static function getLoader()
             return self::$loader;
         }
 
-        spl_autoload_register(array('ComposerAutoloaderInit470ad92e04ebe7807935539568e0c68f', 'loadClassLoader'), true, true);
+        spl_autoload_register(array('ComposerAutoloaderInitcf1d947e9768c34d09a4e46d10546389', 'loadClassLoader'), true, true);
         self::$loader = $loader = new \Composer\Autoload\ClassLoader(\dirname(__DIR__));
-        spl_autoload_unregister(array('ComposerAutoloaderInit470ad92e04ebe7807935539568e0c68f', 'loadClassLoader'));
+        spl_autoload_unregister(array('ComposerAutoloaderInitcf1d947e9768c34d09a4e46d10546389', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        call_user_func(\Composer\Autoload\ComposerStaticInit470ad92e04ebe7807935539568e0c68f::getInitializer($loader));
+        call_user_func(\Composer\Autoload\ComposerStaticInitcf1d947e9768c34d09a4e46d10546389::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
 
-        $filesToLoad = \Composer\Autoload\ComposerStaticInit470ad92e04ebe7807935539568e0c68f::$files;
+        $filesToLoad = \Composer\Autoload\ComposerStaticInitcf1d947e9768c34d09a4e46d10546389::$files;
         $requireFile = \Closure::bind(static function ($fileIdentifier, $file) {
             if (empty($GLOBALS['__composer_autoload_files'][$fileIdentifier])) {
                 $GLOBALS['__composer_autoload_files'][$fileIdentifier] = true;
diff --git a/vendor/composer/autoload_static.php b/vendor/composer/autoload_static.php
index c7d1bb0bb68d..17a5b3eef127 100644
--- a/vendor/composer/autoload_static.php
+++ b/vendor/composer/autoload_static.php
@@ -4,7 +4,7 @@
 
 namespace Composer\Autoload;
 
-class ComposerStaticInit470ad92e04ebe7807935539568e0c68f
+class ComposerStaticInitcf1d947e9768c34d09a4e46d10546389
 {
     public static $files = array (
         'ad155f8f1cf0d418fe49e248db8c661b' => __DIR__ . '/..' . '/react/promise/src/functions_include.php',
@@ -3095,9 +3095,9 @@ class ComposerStaticInit470ad92e04ebe7807935539568e0c68f
     public static function getInitializer(ClassLoader $loader)
     {
         return \Closure::bind(function () use ($loader) {
-            $loader->prefixLengthsPsr4 = ComposerStaticInit470ad92e04ebe7807935539568e0c68f::$prefixLengthsPsr4;
-            $loader->prefixDirsPsr4 = ComposerStaticInit470ad92e04ebe7807935539568e0c68f::$prefixDirsPsr4;
-            $loader->classMap = ComposerStaticInit470ad92e04ebe7807935539568e0c68f::$classMap;
+            $loader->prefixLengthsPsr4 = ComposerStaticInitcf1d947e9768c34d09a4e46d10546389::$prefixLengthsPsr4;
+            $loader->prefixDirsPsr4 = ComposerStaticInitcf1d947e9768c34d09a4e46d10546389::$prefixDirsPsr4;
+            $loader->classMap = ComposerStaticInitcf1d947e9768c34d09a4e46d10546389::$classMap;
 
         }, null, ClassLoader::class);
     }