diff --git a/flufl.bounce-3.0.tar.gz b/flufl.bounce-3.0.tar.gz
deleted file mode 100644
index 0a4d61a..0000000
--- a/flufl.bounce-3.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:a2c549fc40a58ddfa9dfd115fe43d5cac4f042e45bacef3be7fb993e1496b34c
-size 89156
diff --git a/flufl.bounce-4.0.tar.gz b/flufl.bounce-4.0.tar.gz
new file mode 100644
index 0000000..e5204f4
--- /dev/null
+++ b/flufl.bounce-4.0.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:25504aeb976ec0fe5a19cd6c413a3410cb514fdcdbdca9f9b5d8d343a8603831
+size 108623
diff --git a/python-flufl.bounce.changes b/python-flufl.bounce.changes
index b125b63..a291d47 100644
--- a/python-flufl.bounce.changes
+++ b/python-flufl.bounce.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Wed Nov 17 09:55:03 UTC 2021 - Andreas Schneider <asn@cryptomilk.org>
+
+- Update to version 4.0
+  * https://gitlab.com/warsaw/flufl.bounce/-/blob/4.0/flufl/bounce/NEWS.rst
+
 -------------------------------------------------------------------
 Fri Jan 24 12:01:55 UTC 2020 - pgajdos@suse.com
 
diff --git a/python-flufl.bounce.spec b/python-flufl.bounce.spec
index 5f21bee..baee066 100644
--- a/python-flufl.bounce.spec
+++ b/python-flufl.bounce.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package python-flufl.bounce
 #
-# 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
@@ -17,9 +17,9 @@
 
 
 %{?!python_module:%define python_module() python-%{**} python3-%{**}}
-%define skip_python2 1
+%define pythons python3
 Name:           python-flufl.bounce
-Version:        3.0
+Version:        4.0
 Release:        0
 Summary:        Email bounce detectors
 License:        Apache-2.0
@@ -28,16 +28,17 @@ URL:            https://fluflbounce.readthedocs.io/en/latest/
 Source0:        https://files.pythonhosted.org/packages/source/f/flufl.bounce/flufl.bounce-%{version}.tar.gz
 Source1:        https://gitlab.com/warsaw/flufl.bounce/raw/master/LICENSE
 BuildRequires:  %{python_module setuptools}
-BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
 Requires:       python-atpublic
 Requires:       python-zope.interface
-BuildArch:      noarch
 # SECTION test requirements
 BuildRequires:  %{python_module atpublic}
 BuildRequires:  %{python_module pytest}
+BuildRequires:  %{python_module six}
 BuildRequires:  %{python_module zope.interface}
 # /SECTION
+BuildRequires:  fdupes
+BuildArch:      noarch
 %python_subpackages
 
 %description