diff --git a/libebml.spec b/libebml.spec
index df770ef..d9a0efa 100644
--- a/libebml.spec
+++ b/libebml.spec
@@ -1,12 +1,12 @@
 Name:          libebml
-Version:       1.4.2
+Version:       1.4.3
 Release:       1mamba
 Summary:       Extensible Binary Meta Language library
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           https://www.matroska.org/
+URL:           https://www.matroska.org/index.html
 Source:        http://dl.matroska.org/downloads/%{name}/%{name}-%{version}.tar.xz
 License:       LGPL
 ## AUTOBUILDREQ-BEGIN
@@ -14,7 +14,6 @@ BuildRequires: glibc-devel
 BuildRequires: libgcc
 BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
-BuildRoot:     %{_tmppath}/%{name}-%{version}-buildroot
 
 %description
 This library is used for I/O operations in the Extensible Binary Meta Language
@@ -29,10 +28,10 @@ Requires:     %{name} = %{version}
 This library is used for I/O operations in the Extensible Binary Meta Language (EBML), which is a kind of binary version of XML.
 This package contains the files required to rebuild applications which will use the Extensible Binary Meta Language.
 
+%debug_package
+
 %prep
 %setup -q
-# fix strange mode for this text file
-chmod -x ChangeLog
 
 %build
 %cmake -d build
@@ -63,9 +62,12 @@ chmod +x %{buildroot}%{_libdir}/*.so.*
 %{_libdir}/pkgconfig/libebml.pc
 %dir %{_libdir}/cmake/EBML
 %{_libdir}/cmake/EBML/EBML*.cmake
-%doc ChangeLog
+%doc README.md
 
 %changelog
+* Sun Oct 02 2022 Automatic Build System <autodist@mambasoft.it> 1.4.3-1mamba
+- automatic version update by autodist
+
 * Thu Feb 18 2021 Automatic Build System <autodist@mambasoft.it> 1.4.2-1mamba
 - automatic version update by autodist