diff --git a/opencolorio.spec b/opencolorio.spec
index d438217..aa4d7a6 100644
--- a/opencolorio.spec
+++ b/opencolorio.spec
@@ -1,25 +1,31 @@
 Name:          opencolorio
-Version:       v1.0.9
-Release:       1mamba
+Epoch:         1
+Version:       2.1.1
+Release:       2mamba
 Summary:       A color management framework for visual effects and animation
 Group:         Applications/Graphics
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://opencolorio.org/
-## GITSOURCE https://github.com/imageworks/OpenColorIO.git v1.0.9
-Source:        https://github.com/imageworks/OpenColorIO.git/%{version}/OpenColorIO-%{version}.tar.bz2
+URL:           https://opencolorio.org/
+Source:        https://github.com/imageworks/OpenColorIO.git/v%{version}/OpenColorIO-%{version}.tar.bz2
 License:       BSD
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
+BuildRequires: libGLU-devel
+BuildRequires: libexpat-devel
+BuildRequires: libfreeglut-devel
 BuildRequires: libgcc
+BuildRequires: libglew-devel
+BuildRequires: libglvnd-devel
+BuildRequires: libimath-devel
 BuildRequires: liblcms2-devel
-BuildRequires: libpython-devel
+BuildRequires: libopenimageio-devel
 BuildRequires: libstdc++6-devel
+BuildRequires: libyaml-cpp-devel
 ## AUTOBUILDREQ-END
 BuildRequires: cmake
 Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 OpenColorIO (OCIO) is a complete color management solution geared towards motion picture production with an emphasis on visual effects and computer animation.
@@ -36,8 +42,7 @@ This package contains shared libraries for %{name}.
 Group:         Development/Libraries
 Summary:       Development files for %{name}
 Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
-## note: you can add this requirement if .pc files are provided by this package
-#Requires:      pkg-config
+Requires:      pkg-config
 
 %description -n lib%{name}-devel
 This package contains libraries and header files for developing applications that use %{name}.
@@ -48,13 +53,21 @@ This package contains libraries and header files for developing applications tha
 %setup -q -n OpenColorIO-%{version}
 
 %build
-%cmake -d build
+%cmake -d build \
+   -DOCIO_BUILD_PYTHON=OFF \
+   -DCMAKE_CXX_STANDARD="14" \
+%ifnarch x86_64
+   -DOCIO_USE_SSE=OFF
+%endif
+
 %make
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 %makeinstall -C build
 
+rm -rf %{buildroot}%{_builddir}/OpenColorIO-%{version}
+
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
@@ -63,27 +76,37 @@ This package contains libraries and header files for developing applications tha
 
 %files
 %defattr(-,root,root)
-%{_bindir}/ociobakelut
-%{_bindir}/ociocheck
+%{_bindir}/oc*
 %{_datadir}/ocio/setup_ocio.sh
 
 %files -n lib%{name}
 %defattr(-,root,root)
 %{_libdir}/libOpenColorIO.so.*
-%{python27_sitearch}/PyOpenColorIO.so
+#%{python3_sitearch}/site-packages/PyOpenColorIO.so
 %doc LICENSE
 
 %files -n lib%{name}-devel
 %defattr(-,root,root)
 %dir %{_includedir}/OpenColorIO
 %{_includedir}/OpenColorIO/*.h
-%dir %{_includedir}/PyOpenColorIO
-%{_includedir}/PyOpenColorIO/PyOpenColorIO.h
-%{_prefix}/lib/libOpenColorIO.a
+%dir %{_includedir}/OpenColorIO/oglapphelpers
+%{_includedir}/OpenColorIO/oglapphelpers/*
+#%dir %{_includedir}/OpenColorIO/oiiohelpers
+#%{_includedir}/OpenColorIO/oiiohelpers/*
+%{_libdir}/libOpenColorIOoglapphelpers.a
+#%{_libdir}/libOpenColorIOoiiohelpers.a
 %{_libdir}/libOpenColorIO.so
 %{_libdir}/pkgconfig/OpenColorIO.pc
-%doc ChangeLog README
+%dir %{_libdir}/cmake/OpenColorIO
+%{_libdir}/cmake/OpenColorIO/OpenColorIO*.cmake
+#%doc ChangeLog README
 
 %changelog
+* Fri Feb 04 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 2.1.1-2mamba
+- rebuilt with libopenimageio 2.3.12.0
+
+* Tue Feb 01 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 2.1.1-1mamba
+- update to 2.1.1
+
 * Mon Nov 24 2014 Silvan Calarco <silvan.calarco@mambasoft.it> v1.0.9-1mamba
 - package created using the webbuild interface