diff --git a/libthai.spec b/libthai.spec
index 12a6dd9..f092b38 100644
--- a/libthai.spec
+++ b/libthai.spec
@@ -1,28 +1,27 @@
-%define        libdatrie_version 0.2.5
 Name:          libthai
-Version:       0.1.28
-Release:       2mamba
+Version:       0.1.29
+Release:       1mamba
 Summary:       Thai language support routines
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://linux.thai.net/
-Source0:       ftp://linux.thai.net/pub/thailinux/software/libthai/libthai-%{version}.tar.xz
-Source1:       ftp://linux.thai.net/pub/thailinux/software/libthai/libdatrie-%{libdatrie_version}.tar.gz
+URL:           https://github.com/tlwg/libthai
+Source:        https://github.com/tlwg/libthai.git/v%{version}/libthai-%{version}.tar.bz2
 Patch0:        libthai-0.1.12-libdatrie-0.2.2-static-build.patch
 Patch1:        libthai-0.1.9-doxygen-segfault.patch 
 License:       LGPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: pkgconfig
+BuildRequires: libdatrie-devel
 ## AUTOBUILDREQ-END
 BuildRequires: autoconf
 BuildRequires: automake
 BuildRequires: doxygen
 BuildRequires: libtool
 BuildRequires: pkgconfig
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+BuildRequires: libdatrie-devel
+BuildRequires: libdatrie-tools
 
 %description
 LibThai is a set of Thai language support routines aimed to ease developers' tasks to incorporate Thai language support in their applications. It includes important Thai-specific functions e.g. word breaking, input and output methods as well as basic character and string supports. LibThai is an Open Source and collaborative effort initiated by Thai Linux Working Group and opened for all contributors.
@@ -34,8 +33,7 @@ Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
 
 %description devel
 LibThai is a set of Thai language support routines.
-
-This package contains libraries and header files need for development.
+This package contains libraries and header files needed for development.
 
 %package static
 Group:         Development/Libraries
@@ -44,36 +42,17 @@ Requires:      %{name}-devel = %{?epoch:%epoch:}%{version}-%{release}
 
 %description static
 LibThai is a set of Thai language support routines.
-
-This package contains static libraries need for development.
+This package contains static libraries needed for development.
 
 %debug_package
 
 %prep
-%setup -q -n %{name}-%{version} -a1
-%define _default_patch_fuzz 2
-mv libdatrie-%{libdatrie_version} libdatrie
-%patch0 -p1
-#%patch1 -p1
+%setup -q
+./autogen.sh
 
 %build
-
-{
-	pushd libdatrie
-		mkdir m4
-		autoreconf -i -f
-		%configure
-		make
-	popd
-}
-
-export DATRIE_CFLAGS="-I$PWD/libdatrie"
-export DATRIE_LIBS="$PWD/libdatrie/datrie/libdatrie.la"
-export PATH="$PWD/libdatrie/tools:$PATH"
-autoreconf -i -f
-
 %configure
-make
+%make
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
@@ -110,6 +89,9 @@ rmdir %{buildroot}%{_docdir}/libthai
 %{_libdir}/libthai.*a
 
 %changelog
+* Mon Dec 27 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 0.1.29-1mamba
+- update to 0.1.29
+
 * Mon Nov 30 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 0.1.28-2mamba
 - rebuilt with debug package