diff --git a/.gitattributes b/.gitattributes
index 9b03811..8eaa287 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -21,3 +21,5 @@
 *.xz filter=lfs diff=lfs merge=lfs -text
 *.zip filter=lfs diff=lfs merge=lfs -text
 *.zst filter=lfs diff=lfs merge=lfs -text
+*.tar.bz2 filter=lfs diff=lfs merge=lfs -text
+*.tar.?z filter=lfs diff=lfs merge=lfs -text
diff --git a/_service b/_service
new file mode 100644
index 0000000..db058c8
--- /dev/null
+++ b/_service
@@ -0,0 +1,16 @@
+<services>
+  <service name="tar_scm" mode="manual">
+    <param name="scm">git</param>
+    <param name="url">https://github.com/libnxz/power-gzip</param>
+    <param name="revision">master</param>
+    <param name="versionrewrite-pattern">v(.*)</param>
+    <param name="versionformat">@PARENT_TAG@+git@TAG_OFFSET@.%h</param>
+    <param name="changesgenerate">enable</param>
+    <param name="filename">libnxz</param>
+  </service>
+  <service name="recompress" mode="manual">
+    <param name="file">*.tar</param>
+    <param name="compression">xz</param>
+  </service>
+  <service name="set_version" mode="manual" />
+</services>
diff --git a/_servicedata b/_servicedata
new file mode 100644
index 0000000..c93daa5
--- /dev/null
+++ b/_servicedata
@@ -0,0 +1,4 @@
+<servicedata>
+<service name="tar_scm">
+                <param name="url">https://github.com/libnxz/power-gzip</param>
+              <param name="changesrevision">2f1ae5450cac8cc5f93941fd099fbe319e55a319</param></service></servicedata>
\ No newline at end of file
diff --git a/libnxz-0.64+git4.2f1ae54.tar.xz b/libnxz-0.64+git4.2f1ae54.tar.xz
new file mode 100644
index 0000000..79e2f52
--- /dev/null
+++ b/libnxz-0.64+git4.2f1ae54.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5015741a98e63352eba7277e71cb49c393b296bea743a740fa9234d1a979aacc
+size 1166068
diff --git a/libnxz-0.64.tar.gz b/libnxz-0.64.tar.gz
deleted file mode 100644
index b8fb8dd..0000000
--- a/libnxz-0.64.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:86b11ad8b512204816241d5dd98ac0561d1f6b06180f658c532c3ffbc16925df
-size 1515624
diff --git a/libnxz.changes b/libnxz.changes
index 1b47ca5..1238a04 100644
--- a/libnxz.changes
+++ b/libnxz.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Mon Sep 22 08:45:03 UTC 2025 - Michal Suchanek <msuchanek@suse.de>
+
+- Fix URL in spec file
+- Update to version 0.64+git4.2f1ae54:
+  * lib/nx_crc : Fix compile error with gcc15
+  * Changed README.md instructions to substitute zlib
+
 -------------------------------------------------------------------
 Fri Dec 15 09:35:03 UTC 2023 - Danilo Spinella <danilo.spinella@suse.com>
 
diff --git a/libnxz.spec b/libnxz.spec
index f5acd12..a71d9d3 100644
--- a/libnxz.spec
+++ b/libnxz.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package libnxz
 #
-# Copyright (c) 2023 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
@@ -19,13 +19,13 @@
 %global soversion 0
 %define libname %{name}%{soversion}
 Name:           libnxz
-Version:        0.64
+Version:        0.64+git4.2f1ae54
 Release:        0
 Summary:        Zlib implementation for POWER processors
 License:        Apache-2.0 OR GPL-2.0-or-later
 Group:          Development/Libraries/C and C++
-URL:            https://github.com/%{name}/power-gzip
-Source:         %{url}/archive/v%{version}.tar.gz#:/%{name}-%{version}.tar.gz
+URL:            https://github.com/libnxz/power-gzip
+Source:         %{name}-%{version}.tar.xz
 BuildRequires:  dos2unix
 BuildRequires:  pkgconfig
 BuildRequires:  pkgconfig(zlib)
@@ -52,11 +52,11 @@ libnxz implements a zlib-compatible API for Linux userspace programs that exploi
 This package contains the development files for %{name}.
 
 %prep
-%autosetup -p1 -n power-gzip-%{version}
+%autosetup -p1
 dos2unix doc/Addendum-NX-GZIP-for-PowerVM.txt
 
 %build
-export CFLAGS="-ffat-lto-objects %optflags"
+export CFLAGS="-ffat-lto-objects %{optflags}"
 %configure --enable-zlib-api
 %make_build