diff --git a/de/heat-templates/env/mstr1-wrkr3-cmp2-gtw0-lma3.yaml b/de/heat-templates/env/mstr1-wrkr3-cmp2-gtw0-lma3.yaml
index 3fa694b..06ca333 100644
--- a/de/heat-templates/env/mstr1-wrkr3-cmp2-gtw0-lma3.yaml
+++ b/de/heat-templates/env/mstr1-wrkr3-cmp2-gtw0-lma3.yaml
@@ -29,7 +29,7 @@
   lma_metadata: {"labels": {"role": "stacklight", "stacklight": "enabled", "local-volume-provisioner": "enabled"}}
   # hardware_metadata which is used for Ceph requires flavor with
   # ephemeral storage because it is used for Ceph bluestore.
-  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  workers_flavor: 'mosk.l.control.ephemeral'
   cmps_flavor: 'mosk.s.compute.ephemeral'
   storage_frontend_network_cidr: '10.12.1.0/24'
   storage_backend_network_cidr: '10.12.0.0/24'
diff --git a/de/heat-templates/env/mstr1-wrkr3-cmp2-ntw3-lma3.yaml b/de/heat-templates/env/mstr1-wrkr3-cmp2-ntw3-lma3.yaml
index 03067e7..b917c7d 100644
--- a/de/heat-templates/env/mstr1-wrkr3-cmp2-ntw3-lma3.yaml
+++ b/de/heat-templates/env/mstr1-wrkr3-cmp2-ntw3-lma3.yaml
@@ -39,7 +39,7 @@
   ntw_metadata: {"labels": {"tfconfig":"enabled","tfconfigdb":"enabled","tfcontrol":"enabled","tfanalytics":"enabled","tfanalyticsdb":"enabled","tfwebui":"enabled","local-volume-provisioner": "enabled"}}
   # hardware_metadata which is used for Ceph requires flavor with
   # ephemeral storage because it is used for Ceph bluestore.
-  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  workers_flavor: 'mosk.l.control.ephemeral'
   cmps_flavor: 'mosk.s.compute.ephemeral'
   storage_frontend_network_cidr: '10.12.1.0/24'
   storage_backend_network_cidr: '10.12.0.0/24'
diff --git a/de/heat-templates/env/mstr3-wrkr3-cmp2-ntw3-lma3-osd3.yaml b/de/heat-templates/env/mstr3-wrkr3-cmp2-ntw3-lma3-osd3.yaml
index c186711..f15218e 100644
--- a/de/heat-templates/env/mstr3-wrkr3-cmp2-ntw3-lma3-osd3.yaml
+++ b/de/heat-templates/env/mstr3-wrkr3-cmp2-ntw3-lma3-osd3.yaml
@@ -13,7 +13,7 @@
   image: bionic-server-cloudimg-amd64-20190612
   ucp_flavor: system.compact.openstack.control
   masters_flavor: system.compact.openstack.control
-  workers_flavor: system.compact.openstack.control
+  workers_flavor: mosk.l.control.ephemeral
   cmps_flavor: system.virtual.openstack.k8s.compute.small
   lmas_flavor: system.compact.stacklight.server
   osds_flavor: system.virtual.ceph.osd