diff --git a/lib/tempest b/lib/tempest
index 67fb45413e..b491bf82ef 100644
--- a/lib/tempest
+++ b/lib/tempest
@@ -354,6 +354,8 @@ function configure_tempest {
         iniset $TEMPEST_CONFIG compute max_microversion $tempest_compute_max_microversion
     fi
 
+    # TODO(mriedem): Remove allow_port_security_disabled after liberty-eol.
+    iniset $TEMPEST_CONFIG compute-feature-enabled allow_port_security_disabled True
     iniset $TEMPEST_CONFIG compute-feature-enabled personality ${ENABLE_FILE_INJECTION:-False}
     iniset $TEMPEST_CONFIG compute-feature-enabled resize True
     iniset $TEMPEST_CONFIG compute-feature-enabled live_migration ${LIVE_MIGRATION_AVAILABLE:-False}