diff --git a/python-control.changes b/python-control.changes
index bbd7b7b..0217a99 100644
--- a/python-control.changes
+++ b/python-control.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Jul 20 17:48:34 UTC 2020 - Benjamin Greiner <code@bnavigator.de>
+
+- explicitely require Pillow for tests because of matplotlib
+
 -------------------------------------------------------------------
 Thu Jul  9 18:56:06 UTC 2020 - Benjamin Greiner <code@bnavigator.de>
 
diff --git a/python-control.spec b/python-control.spec
index 58f0be4..f81ca88 100644
--- a/python-control.spec
+++ b/python-control.spec
@@ -39,6 +39,7 @@ Requires:       python-scipy
 Recommends:     python-slycot
 BuildArch:      noarch
 # SECTION test requirements
+BuildRequires:  %{python_module Pillow}
 BuildRequires:  %{python_module matplotlib-qt5}
 BuildRequires:  %{python_module matplotlib}
 BuildRequires:  %{python_module numpy}