diff --git a/devstack/lib/ironic b/devstack/lib/ironic
index 72c19ce3be..2292da6e35 100644
--- a/devstack/lib/ironic
+++ b/devstack/lib/ironic
@@ -382,7 +382,7 @@ IRONIC_DEPLOY_LOGS_LOCAL_PATH=${IRONIC_DEPLOY_LOGS_LOCAL_PATH:-$IRONIC_VM_LOG_DI
 TEMPEST_BAREMETAL_MIN_MICROVERSION=${TEMPEST_BAREMETAL_MIN_MICROVERSION:-}
 
 # Define baremetal max_microversion in tempest config. No default value means that it is picked from tempest.
-TEMPEST_BAREMETAL_MAX_MICROVERSION=${TEMPEST_BAREMETAL_MAX_MICROVERSION:-}
+TEMPEST_BAREMETAL_MAX_MICROVERSION=${TEMPEST_BAREMETAL_MAX_MICROVERSION:-'1.31'}
 
 # get_pxe_boot_file() - Get the PXE/iPXE boot file path
 function get_pxe_boot_file {