diff --git a/deployment/heat/onap-oom/env/tlab/onap-oom.env b/deployment/heat/onap-oom/env/tlab/onap-oom.env
index b1f0da1..9680e75 100644
--- a/deployment/heat/onap-oom/env/tlab/onap-oom.env
+++ b/deployment/heat/onap-oom/env/tlab/onap-oom.env
@@ -8,7 +8,7 @@
   rancher_vm_flavor: m5.xlarge
   k8s_vm_flavor: m4.xlarge
   etcd_vm_flavor: m1.medium
-  orch_vm_flavor: m1.large
+  orch_vm_flavor: m1.medium
 
   public_net_id: fbe8fd92-6636-4e63-ab28-bb6a5b0888a9