diff --git a/.zuul.yaml b/.zuul.yaml
index f2f7b7547d..14e062d827 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -25,6 +25,7 @@
       - openstack/zaqar
       - openstack/tempest
     vars:
+      configure_swap_size: 8192
       gabbi_tempest_path: heat_tempest_plugin.tests.api.gabbits
       tempest_plugins:
         - heat-tempest-plugin
@@ -140,6 +141,7 @@
       - opendev.org/openstack/heat-tempest-plugin
       - opendev.org/openstack/python-heatclient
     vars:
+      configure_swap_size: 8192
       devstack_services:
         h-api: true
         h-api-cfn: true