diff --git a/infrastructure-playbooks/rolling_update.yml b/infrastructure-playbooks/rolling_update.yml
index 268497930..8625927b0 100644
--- a/infrastructure-playbooks/rolling_update.yml
+++ b/infrastructure-playbooks/rolling_update.yml
@@ -347,7 +347,7 @@
       when: not containerized_deployment
 
     - name: get osd unit names - container
-      shell: systemctl list-units | grep -E "loaded * active" | grep -oE "ceph-osd@([0-9]{1,}|[a-z]+).service"
+      shell: systemctl list-units | grep -E "loaded * active" | grep -oE "ceph-osd@([a-z0-9]+).service"
       register: osd_names
       changed_when: false
       when: containerized_deployment