diff --git a/liblensfun.spec b/liblensfun.spec
index cbecdff..98f78b7 100644
--- a/liblensfun.spec
+++ b/liblensfun.spec
@@ -1,13 +1,14 @@
 Name:          liblensfun
-Version:       0.3.95
-Release:       2mamba
+Epoch:         1
+Version:       0.3.3
+Release:       1mamba
 Summary:       A library to rectify the defects introduced by your photographic equipment
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
-Packager:      Davide Madrisan <davide.madrisan@gmail.com>
-URL:           http://lensfun.sourceforge.net/
-Source:        http://downloads.sourceforge.net/project/lensfun/%{version}/lensfun-%{version}.tar.gz
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://lensfun.sourceforge.net/
+Source:        https://github.com/lensfun/lensfun.git/v%{version}/lensfun-%{version}.tar.bz2
 Patch0:        liblensfun-0.2.6-pkgconfig.patch
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
@@ -17,7 +18,8 @@ BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
 License:       LGPL
 Requires:      %{name}-tools = %{?epoch:%epoch:}%{version}-%{release}
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+Provides:      liblensfun1
+Obsoletes:     liblensfun1 < 0.3.33
 
 %description
 The goal of the lensfun library is to provide a open source database of photographic lenses and their characteristics.
@@ -27,6 +29,8 @@ The lensfun library not only provides a way to read the database and search for
 Group:         Development/Libraries
 Summary:       Static libraries and headers for %{name}
 Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
+Provides:      liblensfun1-devel
+Obsoletes:     liblensfun1-devel < 0.3.33
 
 %description devel
 The goal of the lensfun library is to provide a open source database of photographic lenses and their characteristics.
@@ -37,6 +41,8 @@ This package contains static libraries and header files need for development.
 Group:         Applications/Databases
 Summary:       Utility applications for %{name}
 Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
+Provides:      liblensfun1-tools
+Obsoletes:     liblensfun1-tools < 0.3.33
 
 %description tools
 This package contains utility applications for %{name}.
@@ -50,8 +56,14 @@ Requires:      python3
 %description -n python-lensfun
 This package contains the python binding for %{name}.
 
+%debug_package
+
 %prep
 %setup -q -n lensfun-%{version}
+if [ "%{version}" == "0.3.95" ]; then
+   echo "ERROR: lensfun 0.3.95 is an old version packaged as liblensfun2, will not update liblensfun package."
+   exit 1
+fi
 
 %build
 %cmake -d build \
@@ -89,17 +101,20 @@ This package contains the python binding for %{name}.
 
 %files -n python-lensfun
 %defattr(-,root,root)
-%{python3_sitelib}/lensfun-%{version}-py*.egg-info
-%{python3_sitelib}/lensfun/*
+%{python3_sitelib}/lensfun-%{version}-py*.egg
+#%{python3_sitelib}/lensfun/*
 
 %files tools
 %defattr(-,root,root)
 %{_bindir}/g-lensfun-update-data
 %{_bindir}/lensfun-add-adapter
 %{_bindir}/lensfun-update-data
-%{_bindir}/lensfun-convert-lcp
+#%{_bindir}/lensfun-convert-lcp
 
 %changelog
+* Thu Mar 09 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 0.3.3-1mamba
+- update to 0.3.3
+
 * Mon Feb 24 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 0.3.95-2mamba
 - liblensfun: require lliblensfun-tools