diff --git a/openexr.spec b/openexr.spec
index c22a3ea..4660f33 100644
--- a/openexr.spec
+++ b/openexr.spec
@@ -1,5 +1,5 @@
 Name:          openexr
-Version:       2.3.0
+Version:       2.4.1
 Release:       1mamba
 Summary:       A high dynamic-range (HDR) image file format for use in computer imaging applications.
 Group:         Applications/Graphics
@@ -7,7 +7,8 @@ Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           http://www.openexr.org
-Source:        https://github.com/openexr/openexr/releases/download/v%{version}/%{name}-%{version}.tar.gz
+Source:        https://github.com/AcademySoftwareFoundation/openexr/archive/v%{version}.zip
+#Source:        https://github.com/openexr/openexr/releases/download/v%{version}/%{name}-%{version}.tar.gz
 #Source:        http://download.savannah.nongnu.org/releases/openexr/openexr-%{version}.tar.gz
 #https://github.com/downloads/openexr/openexr/openexr-%{version}.tar.gz
 Patch0:        %{name}-1.6.1-gcc43.patch
@@ -52,21 +53,20 @@ OpenEXR is used by ILM on all motion pictures currently in production. The first
 
 This package contains static libraries and header files need for development.
 
+%debug_package
+
 %prep
 %setup -q -n openexr-%{version}
 #%patch0 -p1
 #%patch1 -p1
 
 %build
-%configure \
-   --disable-ilmbasetest \
-   --enable-namespaceversioning=no
-
-%make DEFAULT_INCLUDES="-I. -I../config -I../IlmImf -I../IlmImfUtil"
+%cmake -d build
+%make
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-%makeinstall
+%makeinstall -C build
 
 # compatibility symlinks with previous version with namespaceversioning enabled
 #ln -s libIlmImf.so.20 %{buildroot}%{_libdir}/libIlmImf-Imf_2_0.so.20
@@ -83,28 +83,61 @@ This package contains static libraries and header files need for development.
 
 %files -n libopenexr
 %defattr(-,root,root)
-%{_libdir}/libIlmImf.so.*
-%{_libdir}/libIlmImfUtil.so.*
-#%{_libdir}/libIlmImf-Imf_2_0.so.*
-%doc AUTHORS LICENSE
+%{_libdir}/libHalf-2_4.so.*
+%{_libdir}/libIex-2_4.so.*
+%{_libdir}/libIexMath-2_4.so.*
+%{_libdir}/libIlmImf-2_4.so.*
+%{_libdir}/libIlmImfUtil-2_4.so.*
+%{_libdir}/libIlmThread-2_4.so.*
+%{_libdir}/libImath-2_4.so.*
+%{_libdir}/libPyIex_Python2_7-2_4.so.*
+%{_libdir}/libPyIex_Python3_7-2_4.so.*
+%{_libdir}/libPyImath_Python2_7-2_4.so.*
+%{_libdir}/libPyImath_Python3_7-2_4.so.*
+%{python3_sitearch}/iex.so
+%{python3_sitearch}/imath.so
+%{python27_sitearch}/iex.so
+%{python27_sitearch}/imath.so
+%doc LICENSE.md
 
 %files -n libopenexr-devel
 %defattr(-,root,root)
 %dir %{_includedir}/OpenEXR
 %{_includedir}/OpenEXR/*.h
-%{_libdir}/pkgconfig/OpenEXR.pc
-%{_datadir}/aclocal/openexr.m4
-%{_libdir}/libIlmImf.a
-%{_libdir}/libIlmImf.la
 %{_libdir}/libIlmImf.so
-%{_libdir}/libIlmImfUtil.a
-%{_libdir}/libIlmImfUtil.la
+%{_libdir}/libHalf-2_4.so
+%{_libdir}/libHalf.so
+%{_libdir}/libIex-2_4.so
+%{_libdir}/libIex.so
+%{_libdir}/libIexMath-2_4.so
+%{_libdir}/libIexMath.so
+%{_libdir}/libIlmImf-2_4.so
+%{_libdir}/libIlmImfUtil-2_4.so
+%{_libdir}/libIlmThread-2_4.so
+%{_libdir}/libIlmThread.so
+%{_libdir}/libImath-2_4.so
+%{_libdir}/libImath.so
+%{_libdir}/libPyIex_Python2_7-2_4.so
+%{_libdir}/libPyIex_Python3_7-2_4.so
+%{_libdir}/libPyImath_Python2_7-2_4.so
+%{_libdir}/libPyImath_Python3_7-2_4.so
 %{_libdir}/libIlmImfUtil.so
-%dir %{_datadir}/doc/openexr
-%{_datadir}/doc/openexr/*
-%doc ChangeLog NEWS README.md
+%dir %{_libdir}/cmake/IlmBase
+%{_libdir}/cmake/IlmBase/IlmBaseConfig*.cmake
+%dir %{_libdir}/cmake/OpenEXR
+%{_libdir}/cmake/OpenEXR/OpenEXRConfig*.cmake
+%dir %{_libdir}/cmake/PyIlmBase
+%{_libdir}/cmake/PyIlmBase/PyIlmBaseConfig*.cmake
+%{_libdir}/pkgconfig/IlmBase.pc
+%{_libdir}/pkgconfig/OpenEXR.pc
+%dir %{_datadir}/doc/OpenEXR
+%{_datadir}/doc/OpenEXR/*
+#%doc ChangeLog NEWS README.md
 
 %changelog
+* Mon Mar 30 2020 Ercole 'ercolinux' Carpanetto <ercole69@gmail.com> 2.4.1-1mamba
+- update to 2.4.1
+
 * Tue Sep 04 2018 Silvan Calarco <silvan.calarco@mambasoft.it> 2.3.0-1mamba
 - update to 2.3.0