diff --git a/tests/realmd_join_sssd.pm b/tests/realmd_join_sssd.pm
index 911a03f9..5e1ab913 100644
--- a/tests/realmd_join_sssd.pm
+++ b/tests/realmd_join_sssd.pm
@@ -56,6 +56,8 @@ sub run {
         # deploy as a replica
         my ($ip, $hostname) = split(/ /, get_var("POST_STATIC"));
         my $args = "--ip-address=$ip --setup-dns --auto-forwarders --setup-ca --allow-zone-overlap -U --principal admin --admin-password monkeys123";
+        my $relnum = get_release_number;
+        $args .= ' --no-dnssec-validation' if ($relnum > 37);
         assert_script_run "ipa-replica-install $args", 1500;
 
         # enable and start the systemd service