diff --git a/gramps.spec b/gramps.spec
index fa63295..3bc620d 100644
--- a/gramps.spec
+++ b/gramps.spec
@@ -1,5 +1,5 @@
 Name:          gramps
-Version:       4.1.3
+Version:       4.2.0
 Release:       1mamba
 Summary:       An open source genealogy program
 Group:         Graphical Desktop/Applications/Scientific
@@ -11,7 +11,7 @@ Source:        http://downloads.sourceforge.net/project/gramps/Stable/%{version}
 Patch0:        gramps-4.0.1-validatedmaskedentry_no_attribute__block_changed.patch
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
-BuildRequires: libpython-devel
+BuildRequires: libpython3-devel
 ## AUTOBUILDREQ-END
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
@@ -25,16 +25,16 @@ Gramps, the open source genealogy program.
 #%patch0 -p1
 
 %build
-%{__python} setup.py build
+%{__python3} setup.py build
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-%{__python} setup.py install \
+%{__python3} setup.py install \
    --root=%{buildroot}
 
 %find_lang %{name} || touch %{name}.lang
 
-sed -i "s|%{buildroot}||" %{buildroot}%{python_sitelib}/gramps/gen/utils/resource-path
+sed -i "s|%{buildroot}||" %{buildroot}%{python3_sitelib}/gramps/gen/utils/resource-path
 
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
@@ -61,9 +61,9 @@ fi
 %{_datadir}/mime-info/gramps.keys
 %{_datadir}/mime-info/gramps.mime
 %{_datadir}/mime/packages/gramps.xml
-%dir %{python_sitelib}/gramps
-%{python_sitelib}/gramps/*
-%{python_sitelib}/gramps-%{version}-py%{python_version}.egg-info
+%dir %{python3_sitelib}/gramps
+%{python3_sitelib}/gramps/*
+%{python3_sitelib}/gramps-%{version}-py%{python3_version}.egg-info
 %{_datadir}/icons/gramps.png
 %{_mandir}/cs/man1/gramps.1*
 %{_mandir}/fr/man1/gramps.1*
@@ -77,6 +77,9 @@ fi
 %doc AUTHORS COPYING
 
 %changelog
+* Tue Oct 06 2015 Automatic Build System <autodist@mambasoft.it> 4.2.0-1mamba
+- automatic version update by autodist
+
 * Fri May 01 2015 Automatic Build System <autodist@mambasoft.it> 4.1.3-1mamba
 - automatic version update by autodist