diff --git a/python-dulwich.spec b/python-dulwich.spec
index fe61f68..b06cbe0 100644
--- a/python-dulwich.spec
+++ b/python-dulwich.spec
@@ -1,24 +1,29 @@
 Name:          python-dulwich
-Version:       0.19.16
-Release:       1mamba
+Version:       0.20.21
+Release:       2mamba
 Summary:       Python implementation of Git
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Stefano Cotta Ramusino <stefano.cotta@openmamba.org>
-URL:           http://www.samba.org/~jelmer/dulwich
-Source:        https://pypi.python.org/packages/source/d/dulwich/dulwich-%{version}.tar.gz
+URL:           https://www.dulwich.io/
+Source:        https://pypi.debian.net/dulwich/dulwich-%{version}.tar.gz
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: libpython-devel
+BuildRequires: libpython3-devel
+BuildRequires: python3.7dist(certifi)
+BuildRequires: python3.7dist(setuptools)
+BuildRequires: python3.7dist(urllib3)
 ## AUTOBUILDREQ-END
-Requires:      python >= %python_version
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 %{summary}.
 
+%if "%{?with_pyver}"
+%pyver_package
+%endif
+
 %prep
 %setup -q -n dulwich-%{version}
 
@@ -34,13 +39,21 @@ CFLAGS="%{optflags}" %{__python} setup.py build
    --install-lib=%{python_sitearch} \
    --record=%{name}.filelist
 
-sed -i "s,.*/man/.*,&.gz," %{name}.filelist
+sed -i "\,\.egg-info/,d;s,.*/man/.*,&.gz," %{name}.filelist
 
-%files -f %{name}.filelist
+%files %{?pyappend} -f %{name}.filelist
 %defattr(-,root,root)
+%dir %{python_sitearch}/dulwich-%{version}-py*.egg-info
+%{python_sitearch}/dulwich-%{version}-py*.egg-info/*
 %doc COPYING NEWS
 
 %changelog
+* Tue Apr 06 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 0.20.21-2mamba
+- fix missing %pyappend in files section
+
+* Mon Apr 05 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 0.20.21-1mamba
+- update to 0.20.21
+
 * Sat Apr 18 2020 Automatic Build System <autodist@mambasoft.it> 0.19.16-1mamba
 - automatic version update by autodist