diff --git a/dev/tests/static/testsuite/Magento/Test/Legacy/_files/security/blacklist.php b/dev/tests/static/testsuite/Magento/Test/Legacy/_files/security/blacklist.php
index 3c93d37deba52f6c54bf7574a1c0f46212a785dc..42b8e68e784111b96d43049ae27dc5ebc963ad40 100644
--- a/dev/tests/static/testsuite/Magento/Test/Legacy/_files/security/blacklist.php
+++ b/dev/tests/static/testsuite/Magento/Test/Legacy/_files/security/blacklist.php
@@ -6,4 +6,5 @@
 return [
     'Test/Unit',
     'lib/internal/Magento/Framework/DB/Adapter/Pdo/Mysql.php',
+    'lib/internal/Magento/Framework/Serialize/Serializer/Serialize.php',
 ];