diff --git a/tests/testflows/ldap/authentication/regression.py b/tests/testflows/ldap/authentication/regression.py
index b18e5a93b67..50677d78cb8 100755
--- a/tests/testflows/ldap/authentication/regression.py
+++ b/tests/testflows/ldap/authentication/regression.py
@@ -25,6 +25,8 @@ xfails = {
     "connection protocols/tls cipher suite":
      [(Fail, "can't get it to work")],
     "external user directory/user authentications/valid verification cooldown value ldap unavailable":
+     [(Fail, "flaky, ask Vitaly Zakaznikov, Telegram @vzakaznikov")],
+    "user authentications/rbac=True/verification cooldown/verification cooldown performance":
      [(Fail, "flaky, ask Vitaly Zakaznikov, Telegram @vzakaznikov")]
 }