diff --git a/playbooks/manual/upgrade/fmn.yml b/playbooks/manual/upgrade/fmn.yml
index b9ad03966a..8db405c883 100644
--- a/playbooks/manual/upgrade/fmn.yml
+++ b/playbooks/manual/upgrade/fmn.yml
@@ -72,6 +72,8 @@
     - fmn-worker@2
     - fmn-worker@3
     - fmn-worker@4
+    - fmn-worker@5
+    - fmn-worker@6
     - fmn-celerybeat
 
   - name: Upgrade the database
@@ -87,6 +89,8 @@
     - fmn-worker@2
     - fmn-worker@3
     - fmn-worker@4
+    - fmn-worker@5
+    - fmn-worker@6
     - fmn-celerybeat
 
   - name: And... start the backend again
diff --git a/roles/notifs/backend/tasks/main.yml b/roles/notifs/backend/tasks/main.yml
index 27a07d9fd4..9af37829f4 100644
--- a/roles/notifs/backend/tasks/main.yml
+++ b/roles/notifs/backend/tasks/main.yml
@@ -71,6 +71,8 @@
   - fmn-worker@2
   - fmn-worker@3
   - fmn-worker@4
+  - fmn-worker@5
+  - fmn-worker@6
   - fmn-celerybeat
   tags:
   - notifs