diff --git a/python-graphviz.changes b/python-graphviz.changes
index b51db7a..85819af 100644
--- a/python-graphviz.changes
+++ b/python-graphviz.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Tue Apr 23 10:58:51 UTC 2019 - Thomas Bechtold <tbechtold@suse.com>
+
+- Add minimal needed versions to BuildRequires
+  Build fails with older python-pytest-mock versions so add the
+  needed checks to avoid that
+
 -------------------------------------------------------------------
 Tue Dec  4 12:48:43 UTC 2018 - Matej Cepl <mcepl@suse.com>
 
diff --git a/python-graphviz.spec b/python-graphviz.spec
index 765265c..fe70009 100644
--- a/python-graphviz.spec
+++ b/python-graphviz.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package python-graphviz
 #
-# Copyright (c) 2018 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -25,10 +25,10 @@ License:        MIT
 Group:          Development/Languages/Python
 URL:            http://github.com/xflr6/graphviz
 Source:         https://files.pythonhosted.org/packages/source/g/graphviz/graphviz-%{version}.zip
-BuildRequires:  %{python_module mock}
+BuildRequires:  %{python_module mock >= 2}
+BuildRequires:  %{python_module pytest >= 3.4}
 BuildRequires:  %{python_module pytest-cov}
-BuildRequires:  %{python_module pytest-mock}
-BuildRequires:  %{python_module pytest}
+BuildRequires:  %{python_module pytest-mock >= 1.8}
 BuildRequires:  %{python_module setuptools}
 BuildRequires:  dos2unix
 BuildRequires:  fdupes