diff --git a/backups/base/backup-cronjob.yaml b/backups/base/backup-cronjob.yaml
index 100da8b..370fb49 100644
--- a/backups/base/backup-cronjob.yaml
+++ b/backups/base/backup-cronjob.yaml
@@ -57,4 +57,4 @@ spec:
                   mountPath: /backup_ipc
               livenessProbe:
                 exec:
-                  command: ["bash", "-c", "if test -f /backup_ipc/stop; then umount /backup_storage; exit 1; fi;"]
+                  command: ["sh", "-c", "if test -f /backup_ipc/stop; then umount /backup_storage; exit 1; fi;"]