diff --git a/src/Symfony/Bundle/TwigBundle/CHANGELOG.md b/src/Symfony/Bundle/TwigBundle/CHANGELOG.md
index 5502812c27ec1..ba5a3f08850d8 100644
--- a/src/Symfony/Bundle/TwigBundle/CHANGELOG.md
+++ b/src/Symfony/Bundle/TwigBundle/CHANGELOG.md
@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+6.3
+---
+
+ * Deprecate the `Twig_Environment` autowiring alias, use `Twig\Environment` instead
+
 6.2
 ---
 
diff --git a/src/Symfony/Bundle/TwigBundle/Resources/config/twig.php b/src/Symfony/Bundle/TwigBundle/Resources/config/twig.php
index aa5c543b30f40..00ed07c588e05 100644
--- a/src/Symfony/Bundle/TwigBundle/Resources/config/twig.php
+++ b/src/Symfony/Bundle/TwigBundle/Resources/config/twig.php
@@ -68,6 +68,7 @@
             ->tag('container.preload', ['class' => TemplateWrapper::class])
 
         ->alias('Twig_Environment', 'twig')
+            ->deprecate('symfony/twig-bundle', '6.3', 'The "%alias_id%" service alias is deprecated, use "'.Environment::class.'" or "twig" instead.')
         ->alias(Environment::class, 'twig')
 
         ->set('twig.app_variable', AppVariable::class)