diff --git a/playbooks/roles/bootstrap-hwconfig/files/heat-environment-city-ubuntu1804.yaml b/playbooks/roles/bootstrap-hwconfig/files/heat-environment-city-ubuntu1804.yaml
index 2829c2f..88432de 100644
--- a/playbooks/roles/bootstrap-hwconfig/files/heat-environment-city-ubuntu1804.yaml
+++ b/playbooks/roles/bootstrap-hwconfig/files/heat-environment-city-ubuntu1804.yaml
@@ -23,20 +23,20 @@
 parameters:
   # parameters for jumphost
   jumphost_image: 'Ubuntu 18.04 Bionic Beaver'
-  jumphost_flavor: 2C-4GB-50GB
-  jumphost_volume_size: 150
+  jumphost_flavor: 2C-4GB-10GB
+  jumphost_volume_size: 50
 
   # parameters for master nodes
   no_of_master_nodes: 1
   master_image: 'Ubuntu 18.04 Bionic Beaver'
-  master_flavor: 2C-4GB-50GB
-  master_volume_size: 150
+  master_flavor: 2C-4GB-10GB
+  master_volume_size: 50
 
   # parameters for worker nodes
   no_of_worker_nodes: 1
   worker_image: 'Ubuntu 18.04 Bionic Beaver'
-  worker_flavor: 2C-4GB-50GB
-  worker_volume_size: 150
+  worker_flavor: 2C-4GB-10GB
+  worker_volume_size: 50
 
   # common parameters
   public_network: ext-net