diff --git a/config/rector/sets/cakephp60.php b/config/rector/sets/cakephp60.php
index 14828d7d..12f92410 100644
--- a/config/rector/sets/cakephp60.php
+++ b/config/rector/sets/cakephp60.php
@@ -21,6 +21,17 @@
 
     $rectorConfig->ruleWithConfiguration(RenamePropertyRector::class, [
         new RenameProperty('Cake\ORM\Entity', '_accessible', 'patchable'),
+        new RenameProperty('Cake\Utility\Inflector', '_plural', 'plural'),
+        new RenameProperty('Cake\Utility\Inflector', '_singular', 'singular'),
+        new RenameProperty('Cake\Utility\Inflector', '_irregular', 'irregular'),
+        new RenameProperty('Cake\Utility\Inflector', '_uninflected', 'uninflected'),
+        new RenameProperty('Cake\Utility\Inflector', '_cache', 'cache'),
+        new RenameProperty('Cake\Utility\Inflector', '_initialState', 'initialState'),
+        new RenameProperty('Cake\Utility\Security', '_hashType', 'hashType'),
+        new RenameProperty('Cake\Utility\Security', '_salt', 'salt'),
+        new RenameProperty('Cake\Utility\Security', '_instance', 'instance'),
+        new RenameProperty('Cake\Utility\CookieCryptTrait', '_validCiphers', 'validCiphers'),
+        new RenameProperty('Cake\Utility\Text', '_defaultTransliterator', 'defaultTransliterator'),
     ]);
 
     $rectorConfig->ruleWithConfiguration(RenameStringRector::class, [