diff --git a/python-dbusmock-0.18.1.tar.gz b/python-dbusmock-0.18.1.tar.gz
deleted file mode 100644
index 58568c9..0000000
--- a/python-dbusmock-0.18.1.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:b0bccb1fd1534e1ad29ba566d68ee72c16893a0cae17655893844556cc1540c2
-size 71974
diff --git a/python-dbusmock-0.18.3.tar.gz b/python-dbusmock-0.18.3.tar.gz
new file mode 100644
index 0000000..f692b3c
--- /dev/null
+++ b/python-dbusmock-0.18.3.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:994a178268b6d74aeb158c0f155cd141e9a0cfae14226a764cd022c4949fe242
+size 72049
diff --git a/python-python-dbusmock.changes b/python-python-dbusmock.changes
index 55ab5a0..3e21fc7 100644
--- a/python-python-dbusmock.changes
+++ b/python-python-dbusmock.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Mon Oct 21 09:50:55 UTC 2019 - Tomáš Chvátal <tchvatal@suse.com>
+
+- Update to 0.18.3:
+  - Fix timeouts for loaded machines and parallel tests
+  - Fix tests for Python 3.8
+
 -------------------------------------------------------------------
 Wed Jan  9 22:19:11 UTC 2019 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/python-python-dbusmock.spec b/python-python-dbusmock.spec
index 330b8a3..60b9363 100644
--- a/python-python-dbusmock.spec
+++ b/python-python-dbusmock.spec
@@ -18,15 +18,13 @@
 
 %{?!python_module:%define python_module() python-%{**} python3-%{**}}
 Name:           python-python-dbusmock
-Version:        0.18.1
+Version:        0.18.3
 Release:        0
 Summary:        Python library for creating mock D-Bus objects
 License:        LGPL-3.0-or-later
-Group:          Development/Languages/Python
 URL:            https://github.com/martinpitt/python-dbusmock
 Source:         https://files.pythonhosted.org/packages/source/p/python-dbusmock/python-dbusmock-%{version}.tar.gz
 BuildRequires:  %{python_module dbus-python}
-BuildRequires:  %{python_module devel}
 BuildRequires:  %{python_module nose}
 BuildRequires:  %{python_module setuptools}
 BuildRequires:  fdupes
@@ -58,7 +56,7 @@ to what one may expect in tests.
 %python_expand %fdupes %{buildroot}%{$python_sitelib}
 
 %check
-%python_exec setup.py test
+%python_expand PYTHONPATH=%{buildroot}%{$python_sitelib} nosetests-%{$python_bin_suffix} -v
 
 %files %{python_files}
 %license COPYING