diff --git a/roles/backup_client/tasks/main.yml b/roles/backup_client/tasks/main.yml
index 722030b77f096a660cb643e37c238a7c19624c3d..d8f4d79bd5a8e73db43ab21939b9f6f69915ed83 100644
--- a/roles/backup_client/tasks/main.yml
+++ b/roles/backup_client/tasks/main.yml
@@ -1,7 +1,7 @@
 ---
 
 # See duply_main_conf.j2 for details on why this is required (at least
-# on Debian 10 Buster). With newer versions of Debian it might be
+# on Debian 11 Bullseye). With newer versions of Debian it might be
 # possible to switch to Paramiko backend.
 - name: Install pexpect for pexpect+sftp Duplicity backend
   apt: