diff --git a/lrzip.spec b/lrzip.spec
index 9f0da53..6286e93 100644
--- a/lrzip.spec
+++ b/lrzip.spec
@@ -1,19 +1,25 @@
 Name:          lrzip
-Version:       0.631
+Version:       0.641
 Release:       1mamba
 Summary:       is a compression program optimised for large files
 Group:         Applications/Archiving
 Vendor:        openmamba
 Distribution:  openmamba
-Packager:      openmamba WebBuild System <webbuild@openmamba.org>
-URL:           http://ck.kolivas.org/apps/lrzip/
-Source:        http://ck.kolivas.org/apps/lrzip/lrzip-%{version}.tar.bz2
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://github.com/ckolivas/lrzip
+Source:        https://github.com/ckolivas/lrzip.git/v%{version}/lrzip-%{version}.tar.bz2
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
-## note: run 'autospec -u -a6 lrzip' to get the list of build requirements.
+BuildRequires: glibc-devel
+BuildRequires: ldconfig
+BuildRequires: libbzip2-devel
+BuildRequires: libgcc
+BuildRequires: liblz4-devel
+BuildRequires: liblzo-devel
+BuildRequires: libstdc++6-devel
+BuildRequires: libz-devel
 ## AUTOBUILDREQ-END
 Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 lrzip is a compression program optimised for large files. The larger the file and the more memory you have, the better the compression advantage this will provide, especially once the files are larger than 100MB. The advantage can be chosen to be either size (much smaller than bzip2) or speed (much faster than bzip2).
@@ -38,9 +44,14 @@ This package contains libraries and header files for developing applications tha
 
 %prep
 %setup -q
+./autogen.sh NOCONFIGURE=1
 
 %build
-%configure
+%configure \
+%ifarch arm aarch64
+   --disable-asm
+%endif
+
 %make
 
 %install
@@ -72,6 +83,12 @@ This package contains libraries and header files for developing applications tha
 %{_docdir}/lrzip/*
 
 %changelog
+* Mon Mar 08 2021 Automatic Build System <autodist@mambasoft.it> 0.641-1mamba
+- automatic version update by autodist
+
+* Sat Feb 20 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 0.640-1mamba
+- update to 0.640
+
 * Tue Nov 08 2016 Automatic Build System <autodist@mambasoft.it> 0.631-1mamba
 - automatic version update by autodist