diff --git a/baselibs.conf b/baselibs.conf
index 93db8ec..aae13c0 100644
--- a/baselibs.conf
+++ b/baselibs.conf
@@ -1,4 +1,6 @@
 pam
 	requires "(systemd-<targettype> if systemd)"
+	obsoletes "pam_unix-<targettype>"
+	obsoletes "pam_unix-nis-<targettype>"
 pam-extra
 pam-devel
diff --git a/pam.changes b/pam.changes
index 33349b2..7805273 100644
--- a/pam.changes
+++ b/pam.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sat Dec 24 13:31:33 UTC 2022 - Dominique Leuenberger <dleuenberger@suse.com>
+
+- Also obsolete pam_unix-32bit to have clean upgrade path.
+
 -------------------------------------------------------------------
 Fri Dec 16 09:37:15 UTC 2022 - Thorsten Kukuk <kukuk@suse.com>