diff --git a/ois.spec b/ois.spec
index bb4d854..7770332 100644
--- a/ois.spec
+++ b/ois.spec
@@ -1,14 +1,15 @@
 %define pkgver %(echo %version | tr . -)
 Name:          ois
-Version:       1.3
-Release:       2mamba
+Version:       1.5
+Release:       1mamba
 Summary:       Object Oriented Input System
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           http://sourceforge.net/projects/wgois/
-Source:        http://downloads.sourceforge.net/project/wgois/Source%20Release/%{version}/ois_v%{pkgver}.tar.gz
+Source:        https://github.com/wgois/OIS.git/v%{version}/OIS-%{version}.tar.bz2
+#Source:        http://downloads.sourceforge.net/project/wgois/Source%20Release/%{version}/ois_v%{pkgver}.tar.gz
 Patch0:        ois-1.3-gcc-4.8.patch
 License:       zlib/libpng
 ## AUTOBUILDREQ-BEGIN
@@ -45,17 +46,19 @@ This package contains libraries and header files for developing applications tha
 %debug_package
 
 %prep
-%setup -q -n %{name}-v%{pkgver}
-%patch0 -p1
+%setup -q -n OIS-%{version}
+
+sed -i "s|\"lib\"|\"%{_lib}\"|" CMakeLists.txt
+sed -i "s|DESTINATION lib$|DESTINATION %{_lib}|" CMakeLists.txt
 
 %build
-sh ./bootstrap
-%configure
+%cmake -d build
+
 %make
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-%makeinstall
+%makeinstall -C build
 
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
@@ -65,18 +68,19 @@ sh ./bootstrap
 
 %files -n lib%{name}
 %defattr(-,root,root)
-%{_libdir}/libOIS-1.3.0.so
+%{_libdir}/libOIS.so.*
 
 %files -n lib%{name}-devel
 %defattr(-,root,root)
-%dir %{_includedir}/OIS
-%{_includedir}/OIS/OIS*.h
-%{_libdir}/libOIS.a
-%{_libdir}/libOIS.la
+%dir %{_includedir}/ois
+%{_includedir}/ois/*.h
 %{_libdir}/libOIS.so
 %{_libdir}/pkgconfig/OIS.pc
 
 %changelog
+* Thu May 21 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 1.5-1mamba
+- update to 1.5
+
 * Fri Feb 12 2016 Silvan Calarco <silvan.calarco@mambasoft.it> 1.3-2mamba
 - rebuilt with gcc 5.3.0