diff --git a/libopenjpeg.spec b/libopenjpeg.spec
index a1c7907..a1dd6c8 100644
--- a/libopenjpeg.spec
+++ b/libopenjpeg.spec
@@ -2,18 +2,20 @@
 %define majver %(echo %version | cut -d. -f1-2)
 %define apiver %(echo %version | cut -d. -f1-2)
 Name:          libopenjpeg
-Version:       2.1.0
-Release:       2mamba
+Version:       2.3.1
+Release:       1mamba
 Summary:       An open-source JPEG 2000 codec written in C language
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           http://www.openjpeg.org
-Source:        https://downloads.sourceforge.net/project/openjpeg.mirror/%{version}/openjpeg-%{version}.tar.gz
+Source:        https://github.com/uclouvain/openjpeg.git/v%{version}/openjpeg-%{version}.tar.bz2
+#Source:        https://downloads.sourceforge.net/project/openjpeg.mirror/%{version}/openjpeg-%{version}.tar.gz
 License:       BSD
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
+BuildRequires: ldconfig
 BuildRequires: liblcms2-devel
 BuildRequires: libpng-devel
 BuildRequires: libtiff-devel
@@ -43,6 +45,8 @@ Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
 %description tools
 This package contains utility applications for %{name}.
 
+%debug_package
+
 %prep
 %setup -q -n openjpeg-%{version}
 #sed -i "s|-o root -g root||" Makefile
@@ -66,13 +70,14 @@ This package contains utility applications for %{name}.
 %files
 %defattr(-,root,root)
 %{_libdir}/libopenjp2.so.*
-%doc LICENSE AUTHORS
+%doc LICENSE
 
 %files devel
 %defattr(-,root,root)
 %dir %{_includedir}/openjpeg-%{apiver}
 %{_includedir}/openjpeg-%{apiver}/*.h
 %{_libdir}/libopenjp2.so
+%{_libdir}/libopenjp2.a
 %{_libdir}/openjpeg-%{apiver}/OpenJPEGConfig.cmake
 %{_libdir}/openjpeg-%{apiver}/OpenJPEGTargets-noconfig.cmake
 %{_libdir}/openjpeg-%{apiver}/OpenJPEGTargets.cmake
@@ -83,12 +88,11 @@ This package contains utility applications for %{name}.
 %{_bindir}/opj_compress
 %{_bindir}/opj_decompress
 %{_bindir}/opj_dump
-#%{_mandir}/man1/opj_compress.1*
-#%{_mandir}/man1/opj_decompress.1*
-#%{_mandir}/man1/opj_dump.1*
-#%{_mandir}/man3/libopenjp2.3*
 
 %changelog
+* Fri Mar 13 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 2.3.1-1mamba
+- update to 2.3.1
+
 * Sun Aug 18 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 2.1.0-2mamba
 - libopenjpeg-devel: require libopenjpeg-tools