diff --git a/baselibs.conf b/baselibs.conf
deleted file mode 100644
index a943935..0000000
--- a/baselibs.conf
+++ /dev/null
@@ -1,3 +0,0 @@
-libsigc-3_0-0
-  provides "libsigc++3-<targettype> = <version>"
-  obsoletes "libsigc++3-<targettype> < <version>"
diff --git a/libsigc++3.changes b/libsigc++3.changes
index 4584886..24e223b 100644
--- a/libsigc++3.changes
+++ b/libsigc++3.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Tue Mar  5 14:07:44 UTC 2024 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Drop baselibs.conf: the -32bit packages are no longer needed and
+  have not been part of Tumbleweed for a while already (build for
+  i586 only enabled in LegacyX86).
+
 -------------------------------------------------------------------
 Sun Oct  1 09:21:53 UTC 2023 - Bjørn Lie <bjorn.lie@gmail.com>
 
diff --git a/libsigc++3.spec b/libsigc++3.spec
index 3d252d8..791933b 100644
--- a/libsigc++3.spec
+++ b/libsigc++3.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package libsigc++3
 #
-# Copyright (c) 2023 SUSE LLC
+# Copyright (c) 2024 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -25,7 +25,6 @@ License:        LGPL-3.0-or-later
 Group:          Development/Libraries/C and C++
 URL:            https://libsigcplusplus.github.io/libsigcplusplus/
 Source0:        https://download.gnome.org/sources/libsigc++/3.6/%{_name}-%{version}.tar.xz
-Source99:       baselibs.conf
 
 BuildRequires:  gcc-c++
 BuildRequires:  meson