diff --git a/core/.phpstan-baseline.php b/core/.phpstan-baseline.php
index adf747b0c5a46fc62a4e4ce0210c9ceec37cebe4..ba6babd797f4de3652a6ca9d4a04147df8998dcb 100644
--- a/core/.phpstan-baseline.php
+++ b/core/.phpstan-baseline.php
@@ -1714,6 +1714,13 @@
 	'count' => 1,
 	'path' => __DIR__ . '/modules/system/system.install',
 ];
+$ignoreErrors[] = [
+	'message' => '#^Fetching deprecated class constant EXISTS_RENAME of class Drupal\\\\Core\\\\File\\\\FileSystemInterface\\:
+in drupal\\:10\\.3\\.0 and is removed from drupal\\:12\\.0\\.0\\. Use
+\\\\Drupal\\\\Core\\\\File\\\\FileExists\\:\\:Rename instead\\.$#',
+	'count' => 1,
+	'path' => __DIR__ . '/modules/system/system.module',
+];
 $ignoreErrors[] = [
 	'message' => '#^Variable \\$messages might not be defined\\.$#',
 	'count' => 1,