diff --git a/libortp.spec b/libortp.spec
index 5e2e475..3c05923 100644
--- a/libortp.spec
+++ b/libortp.spec
@@ -1,22 +1,20 @@
 Name:          libortp
-Version:       1.0.2
+Version:       5.2.111
 Release:       1mamba
 Summary:       A Real-time Transport Protocol (RTP,RFC3550) library
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
-Packager:      Davide Madrisan <davide.madrisan@gmail.com>
-URL:           http://www.linphone.org/index.php/eng/code_review/ortp
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://github.com/BelledonneCommunications/ortp
 Source:        https://github.com/BelledonneCommunications/ortp.git/%{version}/ortp-%{version}.tar.bz2
-#Source:        http://mirror.lihnidos.org/GNU/savannah//linphone/ortp/sources/ortp-%{version}.tar.gz
 License:       LGPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
 BuildRequires: libbctoolbox-devel
-BuildRequires: libpolarssl-devel
+BuildRequires: libgcc
 BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 ortp is a Real-time Transport Protocol (RTP,RFC3550) library.
@@ -37,17 +35,22 @@ Group:         Documentation
 %description apidocs
 %{name} API documentation.
 
+%debug_package
+
 %prep
 %setup -q -n ortp-%{version}
 
 %build
-./autogen.sh
-%configure
-%make
+%cmake \
+   -DENABLE_STATIC=OFF \
+   -DENABLE_DOC=NO \
+   -DENABLE_UNIT_TESTS=NO
+
+%cmake_build
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-%makeinstall
+%cmake_install
 
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
@@ -58,15 +61,16 @@ Group:         Documentation
 %files
 %defattr(-,root,root)
 %{_libdir}/libortp.so.*
-%doc AUTHORS COPYING
+%doc AUTHORS.md LICENSE.txt
 
 %files devel
 %defattr(-,root,root)
 %{_includedir}/ortp
-%{_libdir}/libortp.*a
 %{_libdir}/libortp.so
 %{_libdir}/pkgconfig/ortp.pc
-%doc ChangeLog NEWS
+%dir %{_libdir}/cmake/ortp
+%{_libdir}/cmake/ortp/ortp*.cmake
+%doc CHANGELOG.md
 
 %files apidocs
 %defattr(-,root,root)
@@ -74,6 +78,12 @@ Group:         Documentation
 %{_datadir}/doc/ortp-*/*
 
 %changelog
+* Thu Nov 23 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 5.2.111-1mamba
+- update to 5.2.111
+
+* Tue Jun 15 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 4.5.20-1mamba
+- update to 4.5.20
+
 * Sat Nov 11 2017 Silvan Calarco <silvan.calarco@mambasoft.it> 1.0.2-1mamba
 - update to 1.0.2