diff --git a/soprano.spec b/soprano.spec
index 18796ee..ef9ac9f 100644
--- a/soprano.spec
+++ b/soprano.spec
@@ -3,7 +3,7 @@
 
 Name:          soprano
 Version:       2.9.4
-Release:       1mamba
+Release:       2mamba
 Epoch:         1
 Summary:       The QT/C++ RDF framework
 Group:         Applications/Development
@@ -13,18 +13,19 @@ Packager:      Davide Madrisan <davide.madrisan@gmail.com>
 URL:           http://soprano.sourceforge.net/
 Source:        http://downloads.sourceforge.net/project/soprano/Soprano/%{version}/soprano-%{version}.tar.bz2
 License:       LGPL
-BuildRequires: cmake
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
+BuildRequires: ldconfig
 BuildRequires: libclucene-devel
 BuildRequires: libgcc
+BuildRequires: libgcj4-devel
 BuildRequires: libiodbc-devel
 BuildRequires: libqt4-devel
-BuildRequires: libraptor-devel
-BuildRequires: librasqal-devel
+BuildRequires: libraptor2-devel
 BuildRequires: librdf-devel
 BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
+BuildRequires: cmake
 BuildRequires: libclucene-devel >= 2.3.3.4
 %if "%{stage1}" != "1"
 BuildRequires: gcc-java
@@ -34,10 +35,6 @@ BuildRequires: jpackage-utils
 BuildRequires: libraptor2-devel
 Requires:      %{libname} = %{?epoch:%epoch:}%{version}-%{release}
 Requires:      sopranobackend
-## For backward compatibility do force these static requirements
-#Requires:      %{name}-backend-redland = %{?epoch:%epoch:}%{version}-%{release}
-#Requires:      %{name}-backend-sesame2 = %{?epoch:%epoch:}%{version}-%{release}
-#Requires:      %{name}-backend-virtuoso = %{?epoch:%epoch:}%{version}-%{release}
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
@@ -59,6 +56,9 @@ Summary:       Static libraries and headers for %{name}
 Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
 Obsoletes:     soprano-devel
 Provides:      soprano-devel = %{?epoch:%epoch:}%{version}-%{release}
+Requires:      %{name}-backend-redland = %{?epoch:%epoch:}%{version}-%{release}
+Requires:      %{name}-backend-sesame2 = %{?epoch:%epoch:}%{version}-%{release}
+Requires:      %{name}-backend-virtuoso = %{?epoch:%epoch:}%{version}-%{release}
 
 %description -n %{libname}-devel
 Soprano (formally known as QRDF) is a library which provides a QT wrapper API to different RDF storage solutions.
@@ -193,6 +193,9 @@ PATH="%{_qt4_bindir}:%{_kdebindir}:/bin:/usr/bin"; export PATH
 %endif
 
 %changelog
+* Tue Sep 22 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 2.9.4-2mamba
+- rebuilt with libraptor2
+
 * Sat Oct 12 2013 Automatic Build System <autodist@mambasoft.it> 2.9.4-1mamba
 - automatic version update by autodist