diff --git a/openstack/python-horizon/centos/files/guni_config.py b/openstack/python-horizon/centos/files/guni_config.py
index 6ee58d79..5ec01afb 100644
--- a/openstack/python-horizon/centos/files/guni_config.py
+++ b/openstack/python-horizon/centos/files/guni_config.py
@@ -1,3 +1,10 @@
+"""
+Copyright (c) 2022 Wind River Systems, Inc.
+
+SPDX-License-Identifier: Apache-2.0
+
+"""
+
 import datetime
 import fnmatch
 import os
diff --git a/test-requirements.txt b/test-requirements.txt
index 76713af4..3213ca34 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,5 +1,8 @@
+# The order of packages is significant, because pip processes them in the order
+# of appearance.
+# always put 'hacking' first.  it pulls in flake8, etc..
+hacking < 4.0.1
 bashate
 PyYAML
 yamllint
-flake8
 flake8-import-order