diff --git a/playbooks/roles/bifrost-create-vm-nodes/defaults/main.yml b/playbooks/roles/bifrost-create-vm-nodes/defaults/main.yml
index 64d79ecbd..dffd613a6 100644
--- a/playbooks/roles/bifrost-create-vm-nodes/defaults/main.yml
+++ b/playbooks/roles/bifrost-create-vm-nodes/defaults/main.yml
@@ -40,3 +40,5 @@ bifrost_venv_dir: "{{ lookup('env', 'VENV') | default('/opt/stack/bifrost') }}"
 bifrost_venv_env:
   VIRTUAL_ENV: "{{ bifrost_venv_dir }}"
   PATH: "{{ bifrost_venv_dir }}/bin:{{ ansible_env.PATH }}" # include regular path via lookup env
+reqs_git_folder: /opt/stack/requirements
+upper_constraints_file: "{{ lookup('env', 'UPPER_CONSTRAINTS_FILE') | default(reqs_git_folder + '/upper-constraints.txt', True) }}"
diff --git a/playbooks/roles/bifrost-create-vm-nodes/tasks/prepare_libvirt.yml b/playbooks/roles/bifrost-create-vm-nodes/tasks/prepare_libvirt.yml
index 0d699329d..9364c7a54 100644
--- a/playbooks/roles/bifrost-create-vm-nodes/tasks/prepare_libvirt.yml
+++ b/playbooks/roles/bifrost-create-vm-nodes/tasks/prepare_libvirt.yml
@@ -134,3 +134,4 @@
 - name: install virtualbmc
   pip:
     name: virtualbmc
+    extra_args: "-c {{ upper_constraints_file }}"