diff --git a/app/Commands/CommitCommand.php b/app/Commands/CommitCommand.php
index 06703f4..ba9e669 100644
--- a/app/Commands/CommitCommand.php
+++ b/app/Commands/CommitCommand.php
@@ -44,12 +44,12 @@ final class CommitCommand extends Command
     /**
      * @var \App\ConfigManager
      */
-    protected $configManager;
+    private $configManager;
 
     /**
      * @var \App\GeneratorManager
      */
-    protected $generatorManager;
+    private $generatorManager;
 
     public function __construct(GeneratorManager $generatorManager)
     {
diff --git a/app/Commands/ConfigCommand.php b/app/Commands/ConfigCommand.php
index 875f7de..b02510c 100644
--- a/app/Commands/ConfigCommand.php
+++ b/app/Commands/ConfigCommand.php
@@ -51,7 +51,7 @@ final class ConfigCommand extends Command
     /**
      * @var \App\ConfigManager
      */
-    protected $configManager;
+    private $configManager;
 
     public function __construct()
     {
diff --git a/app/GeneratorManager.php b/app/GeneratorManager.php
index 8020274..5019d72 100644
--- a/app/GeneratorManager.php
+++ b/app/GeneratorManager.php
@@ -51,12 +51,12 @@ protected function createDriver($driver)
         throw new \InvalidArgumentException("Driver [$driver] not supported.");
     }
 
-    protected function createOpenAIDriver(array $config): OpenAIGenerator
+    private function createOpenAIDriver(array $config): OpenAIGenerator
     {
         return new OpenAIGenerator($config);
     }
 
-    protected function createOpenAIChatDriver(array $config): OpenAIChatGenerator
+    private function createOpenAIChatDriver(array $config): OpenAIChatGenerator
     {
         return new OpenAIChatGenerator($config);
     }
diff --git a/rector.php b/rector.php
index 2148e4e..89ef133 100644
--- a/rector.php
+++ b/rector.php
@@ -146,7 +146,7 @@
         // SetList::GMAGICK_TO_IMAGICK,
         // SetList::MYSQL_TO_MYSQLI,
         SetList::NAMING,
-        // SetList::PRIVATIZATION,
+        SetList::PRIVATIZATION,
         SetList::TYPE_DECLARATION,
         SetList::EARLY_RETURN,
         SetList::INSTANCEOF,