diff --git a/ci/environments/multinode-containers.yaml b/ci/environments/multinode-containers.yaml
index 10a2c8c2ad..d255036559 100644
--- a/ci/environments/multinode-containers.yaml
+++ b/ci/environments/multinode-containers.yaml
@@ -71,3 +71,4 @@ parameter_defaults:
     ceph::profile::params::osd_max_object_namespace_len: 64
   SwiftCeilometerPipelineEnabled: False
   Debug: True
+  NotificationDriver: 'noop'
diff --git a/ci/environments/multinode.yaml b/ci/environments/multinode.yaml
index 1752a2f6ed..72b1bc41b8 100644
--- a/ci/environments/multinode.yaml
+++ b/ci/environments/multinode.yaml
@@ -69,3 +69,4 @@ parameter_defaults:
     ceph::profile::params::osd_max_object_namespace_len: 64
   SwiftCeilometerPipelineEnabled: False
   Debug: True
+  NotificationDriver: 'noop'
diff --git a/ci/environments/multinode_major_upgrade.yaml b/ci/environments/multinode_major_upgrade.yaml
index 609e06ffb4..ba5e33354a 100644
--- a/ci/environments/multinode_major_upgrade.yaml
+++ b/ci/environments/multinode_major_upgrade.yaml
@@ -65,3 +65,4 @@ parameter_defaults:
     heat::rpc_response_timeout: 600
   SwiftCeilometerPipelineEnabled: False
   Debug: True
+  NotificationDriver: 'noop'
diff --git a/ci/environments/scenario002-multinode-containers.yaml b/ci/environments/scenario002-multinode-containers.yaml
index 0708863384..b795535a4e 100644
--- a/ci/environments/scenario002-multinode-containers.yaml
+++ b/ci/environments/scenario002-multinode-containers.yaml
@@ -72,3 +72,4 @@ parameter_defaults:
     nova::compute::libvirt::libvirt_virt_type: qemu
   Debug: true
   SwiftCeilometerPipelineEnabled: false
+  NotificationDriver: 'noop'
diff --git a/ci/environments/scenario002-multinode.yaml b/ci/environments/scenario002-multinode.yaml
index 79b74af151..220979b967 100644
--- a/ci/environments/scenario002-multinode.yaml
+++ b/ci/environments/scenario002-multinode.yaml
@@ -71,3 +71,4 @@ parameter_defaults:
     nova::compute::libvirt::libvirt_virt_type: qemu
   Debug: true
   SwiftCeilometerPipelineEnabled: false
+  NotificationDriver: 'noop'
diff --git a/ci/environments/scenario003-multinode-containers.yaml b/ci/environments/scenario003-multinode-containers.yaml
index 8e1b3a05b1..71daf8ec79 100644
--- a/ci/environments/scenario003-multinode-containers.yaml
+++ b/ci/environments/scenario003-multinode-containers.yaml
@@ -70,3 +70,4 @@ parameter_defaults:
   GlanceBackend: 'file'
   KeystoneTokenProvider: 'fernet'
   SwiftCeilometerPipelineEnabled: false
+  NotificationDriver: 'noop'
diff --git a/ci/environments/scenario003-multinode.yaml b/ci/environments/scenario003-multinode.yaml
index 2cce1680c3..7a72562c6b 100644
--- a/ci/environments/scenario003-multinode.yaml
+++ b/ci/environments/scenario003-multinode.yaml
@@ -67,3 +67,4 @@ parameter_defaults:
   GlanceBackend: 'file'
   KeystoneTokenProvider: 'fernet'
   SwiftCeilometerPipelineEnabled: false
+  NotificationDriver: 'noop'
diff --git a/ci/environments/scenario004-multinode-containers.yaml b/ci/environments/scenario004-multinode-containers.yaml
index ba5301629e..c2a2331c1c 100644
--- a/ci/environments/scenario004-multinode-containers.yaml
+++ b/ci/environments/scenario004-multinode-containers.yaml
@@ -96,3 +96,4 @@ parameter_defaults:
   SwiftCeilometerPipelineEnabled: false
   NeutronServicePlugins: 'router, networking_bgpvpn.neutron.services.plugin.BGPVPNPlugin'
   BgpvpnServiceProvider: 'BGPVPN:Dummy:networking_bgpvpn.neutron.services.service_drivers.driver_api.BGPVPNDriver:default'
+  NotificationDriver: 'noop'
diff --git a/ci/environments/scenario004-multinode.yaml b/ci/environments/scenario004-multinode.yaml
index 8bf805df28..a15db8964c 100644
--- a/ci/environments/scenario004-multinode.yaml
+++ b/ci/environments/scenario004-multinode.yaml
@@ -98,3 +98,4 @@ parameter_defaults:
   NeutronServicePlugins: 'router, networking_bgpvpn.neutron.services.plugin.BGPVPNPlugin, networking_l2gw.services.l2gateway.plugin.L2GatewayPlugin'
   BgpvpnServiceProvider: 'BGPVPN:Dummy:networking_bgpvpn.neutron.services.service_drivers.driver_api.BGPVPNDriver:default'
   L2gwServiceProvider: ['L2GW:l2gw:networking_l2gw.services.l2gateway.service_drivers.L2gwDriver:default']
+  NotificationDriver: 'noop'
diff --git a/ci/environments/scenario006-multinode-containers.yaml b/ci/environments/scenario006-multinode-containers.yaml
index 97db897b95..4715e3398b 100644
--- a/ci/environments/scenario006-multinode-containers.yaml
+++ b/ci/environments/scenario006-multinode-containers.yaml
@@ -58,3 +58,4 @@ parameter_defaults:
   # we don't deploy Swift so we switch to file backend.
   GlanceBackend: 'file'
   IronicCleaningDiskErase: 'metadata'
+  NotificationDriver: 'noop'