diff --git a/ansible/Playbooks/update/update-noreboot.yml b/ansible/Playbooks/update/update-noreboot.yml
index 07b5c97..4aac8b8 100644
--- a/ansible/Playbooks/update/update-noreboot.yml
+++ b/ansible/Playbooks/update/update-noreboot.yml
@@ -1,7 +1,7 @@
 ---
 - name: Update APT package list and upgrade packages
   # hosts: "dc00,dc01,dc02,dc03,dc04,dc05,dc09"
-  hosts: prod
+  hosts: all
   become: true
   become_method: su
 
diff --git a/ansible/inventory/02-virtual.yml b/ansible/inventory/02-virtual.yml
index 5c64c6b..8e096cb 100644
--- a/ansible/inventory/02-virtual.yml
+++ b/ansible/inventory/02-virtual.yml
@@ -17,3 +17,14 @@ dev:
   hosts:
     dev302:
       ansible_host: 192.168.1.10
+      ansible_user: user
+      ansible_become_method: sudo
+    dev301:
+      ansible_host: 192.168.50.71
+      ansible_user: user
+      ansible_become_method: sudo
+
+virtual:
+  children:
+    backend:
+    dev:
diff --git a/ansible/readme.md b/ansible/readme.md
index b75b86e..690830d 100644
--- a/ansible/readme.md
+++ b/ansible/readme.md
@@ -3,4 +3,5 @@
 ## Update all packages
 ```bash
 ansible-playbook -i inventory playbooks/update/update-noreboot.yml -l '!dc08' -K
+ansible-playbook -i inventory playbooks/update/update-noreboot.yml -l 'prod' -K
 ```
\ No newline at end of file