diff --git a/pycdlib-1.14.0.tar.gz b/pycdlib-1.14.0.tar.gz
deleted file mode 100644
index 029ad36..0000000
--- a/pycdlib-1.14.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:8ec306b31d9c850f28c5fda52438d904edd1e8fcf862c5ffd756272efac9f422
-size 287166
diff --git a/pycdlib-1.15.0.tar.gz b/pycdlib-1.15.0.tar.gz
new file mode 100644
index 0000000..244081f
--- /dev/null
+++ b/pycdlib-1.15.0.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:39e95a0d90cee4ecc3472d0fcf7167d2a5c30b209dc4b156e39e0cdc441529f2
+size 359823
diff --git a/python-pycdlib.changes b/python-pycdlib.changes
index 1893ce8..6731f17 100644
--- a/python-pycdlib.changes
+++ b/python-pycdlib.changes
@@ -1,3 +1,16 @@
+-------------------------------------------------------------------
+Thu Aug 28 10:23:04 UTC 2025 - Daniel Garcia <daniel.garcia@suse.com>
+
+- Use libalternatives in TW and Leap 16.0
+- Change source to github tag archive, the last tag is not released in
+  pypi.
+- update to 1.15.0:
+  * Remove Python 2 compatibility
+  * Add an encoding parameter to the walk API so non-standard ISOs can be used
+  * Fix ISOs that only have a single extent for Path Tables
+  * Add the 'udf_path' argument to add_file so UDF ISOs can add paths
+  * Fix timestamps for UDF
+
 -------------------------------------------------------------------
 Wed Jun  4 09:27:02 UTC 2025 - Markéta Machová <mmachova@suse.com>
 
diff --git a/python-pycdlib.spec b/python-pycdlib.spec
index a8e36e1..b83af5d 100644
--- a/python-pycdlib.spec
+++ b/python-pycdlib.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package python-pycdlib
 #
-# Copyright (c) 2025 SUSE LLC
+# Copyright (c) 2025 SUSE LLC and contributors
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -16,14 +16,20 @@
 #
 
 
+%if 0%{?suse_version} > 1500
+%bcond_without libalternatives
+%else
+%bcond_with libalternatives
+%endif
+
 Name:           python-pycdlib
-Version:        1.14.0
+Version:        1.15.0
 Release:        0
 Summary:        Pure python ISO manipulation library
 License:        LGPL-2.0-only
 Group:          Development/Languages/Python
 URL:            https://github.com/clalancette/pycdlib
-Source:         https://files.pythonhosted.org/packages/source/p/pycdlib/pycdlib-%{version}.tar.gz
+Source:         %{URL}/archive/v%{version}.tar.gz#/pycdlib-%{version}.tar.gz
 BuildRequires:  %{python_module pip}
 BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module setuptools}
@@ -32,6 +38,15 @@ BuildRequires:  fdupes
 BuildRequires:  mkisofs
 BuildRequires:  python-rpm-macros
 BuildRequires:  timezone
+
+%if %{with libalternatives}
+Requires:       alts
+BuildRequires:  alts
+%else
+Requires(post): update-alternatives
+Requires(postun): update-alternatives
+%endif
+
 Requires:       mkisofs
 Requires:       python3-pycdlib-common
 BuildArch:      noarch
@@ -71,12 +86,17 @@ This package includes the common files.
 %python_clone -a %{buildroot}%{_bindir}/pycdlib-explorer
 %python_clone -a %{buildroot}%{_bindir}/pycdlib-extract-files
 %python_clone -a %{buildroot}%{_bindir}/pycdlib-genisoimage
+%python_group_libalternatives pycdlib-explorer pycdlib-extract-files pycdlib-genisoimage
 
 %check
 export LC_ALL=ja_JP.UTF-8
 export TZ=Asia/Tokyo
 %pytest -k unit
 
+%pre
+# removing old update-alternatives entries
+%python_libalternatives_reset_alternative pycdlib-explorer
+
 %post
 %{python_install_alternative pycdlib-explorer pycdlib-extract-files pycdlib-genisoimage}