diff --git a/phpunit b/phpunit
index 619ba4674a..1cb49096f4 100755
--- a/phpunit
+++ b/phpunit
@@ -16,6 +16,9 @@ if (!getenv('SYMFONY_PHPUNIT_VERSION')) {
         putenv('SYMFONY_PHPUNIT_VERSION=9.5');
     }
 }
+if (!getenv('SYMFONY_PATCH_TYPE_DECLARATIONS') && \PHP_VERSION_ID >= 70200) {
+    putenv('SYMFONY_PATCH_TYPE_DECLARATIONS=deprecations=1');
+}
 if (getcwd() === realpath(__DIR__.'/src/Symfony/Bridge/PhpUnit')) {
     putenv('SYMFONY_DEPRECATIONS_HELPER=disabled');
 }