diff --git a/dulwich-0.20.15.tar.gz b/dulwich-0.20.15.tar.gz
deleted file mode 100644
index a8393ef..0000000
--- a/dulwich-0.20.15.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:fb1773373ec2af896031f8312af6962a1b8b0176a2de3fb3d84a84ec04498888
-size 391841
diff --git a/dulwich-0.20.20.tar.gz b/dulwich-0.20.20.tar.gz
new file mode 100644
index 0000000..3f738bd
--- /dev/null
+++ b/dulwich-0.20.20.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:426959b9705fadcc6c820e5adf3291d71a48aba0afccf7411422e3308f115f87
+size 397197
diff --git a/python-dulwich.changes b/python-dulwich.changes
index e9ceab5..9337ed9 100644
--- a/python-dulwich.changes
+++ b/python-dulwich.changes
@@ -1,3 +1,17 @@
+-------------------------------------------------------------------
+Thu Apr 22 20:19:33 UTC 2021 - Dirk Müller <dmueller@suse.com>
+
+- update to 0.20.20:
+  * Support untracked symlinks to paths outside the
+    repository.
+  * Fix handling of negative matches in nested gitignores.
+  * Fix formatting in setup.py. (Jelmer Vernooij)
+  * Add release configuration. (Jelmer Vernooij)
+  * credentials: ignore end-of-line character. (Georges Racinet)
+  * Fix failure in get_untracked_paths when the repository contains symlinks.
+  * docs: Clarify that Git objects are created on `git add`.
+  * Add flag to only attempt to fetch ignored untracked files when specifically requested.
+
 -------------------------------------------------------------------
 Tue Dec 29 13:32:51 UTC 2020 - Dirk Müller <dmueller@suse.com>
 
diff --git a/python-dulwich.spec b/python-dulwich.spec
index c054673..a06f9cb 100644
--- a/python-dulwich.spec
+++ b/python-dulwich.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package python-dulwich
 #
-# Copyright (c) 2020 SUSE LLC
+# Copyright (c) 2021 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -20,10 +20,10 @@
 %{?!python_module:%define python_module() python-%{**} python3-%{**}}
 %define skip_python2 1
 Name:           python-dulwich
-Version:        0.20.15
+Version:        0.20.20
 Release:        0
 Summary:        Pure-Python Git Library
-License:        GPL-2.0-or-later OR Apache-2.0
+License:        Apache-2.0 OR GPL-2.0-or-later
 Group:          Development/Languages/Python
 URL:            https://www.dulwich.io
 Source0:        https://files.pythonhosted.org/packages/source/d/dulwich/dulwich-%{version}.tar.gz
@@ -44,11 +44,11 @@ BuildRequires:  python3-Sphinx
 Requires:       python-certifi
 Requires:       python-urllib3 >= 1.24.1
 Requires(post): update-alternatives
-Requires(preun): update-alternatives
+Requires(preun):update-alternatives
 Recommends:     python-fastimport
-Recommends:     python-gpg
 Recommends:     python-gevent
 Recommends:     python-geventhttpclient
+Recommends:     python-gpg
 Obsoletes:      %{oldpython}-dulwich-doc < 0.20.5
 %python_subpackages