diff --git a/playbooks/manual/upgrade/fmn.yml b/playbooks/manual/upgrade/fmn.yml
index d82c1f7c5b..976702bd80 100644
--- a/playbooks/manual/upgrade/fmn.yml
+++ b/playbooks/manual/upgrade/fmn.yml
@@ -1,4 +1,3 @@
-# TODO disable and re-enable nagios
 - name: push packages out
   hosts: notifs-backend;notifs-backend-stg;notifs-web;notifs-web-stg
   user: root
@@ -28,6 +27,12 @@
    - "{{ private }}/vars.yml"
    - /srv/web/infra/ansible/vars/{{ ansible_distribution }}.yml
 
+  pre_tasks:
+  - name: tell nagios to shush w.r.t. the frontend
+    nagios: action=downtime minutes=60 service=host host={{ inventory_hostname }}
+    delegate_to: noc01.phx2.fedoraproject.org
+    ignore_errors: true
+
   roles:
   - notifs/frontend
 
@@ -42,6 +47,12 @@
    - "{{ private }}/vars.yml"
    - /srv/web/infra/ansible/vars/{{ ansible_distribution }}.yml
 
+  pre_tasks:
+  - name: tell nagios to shush w.r.t. the backend
+    nagios: action=downtime minutes=60 service=host host={{ inventory_hostname }}
+    delegate_to: noc01.phx2.fedoraproject.org
+    ignore_errors: true
+
   roles:
   - notifs/backend
 
@@ -55,6 +66,12 @@
   - name: And... start the backend again
     service: name="fedmsg-hub" state=started
 
+  post_tasks:
+  - name: tell nagios to unshush w.r.t. the backend
+    nagios: action=unsilence service=host host={{ inventory_hostname }}
+    delegate_to: noc01.phx2.fedoraproject.org
+    ignore_errors: true
+
 - name: restart the frontend
   hosts: notifs-web;notifs-web-stg
   user: root
@@ -65,3 +82,9 @@
 
   tasks:
   - service: name="httpd" state=started
+
+  post_tasks:
+  - name: tell nagios to unshush w.r.t. the frontend
+    nagios: action=unsilence service=host host={{ inventory_hostname }}
+    delegate_to: noc01.phx2.fedoraproject.org
+    ignore_errors: true