diff --git a/requirements.txt b/requirements.txt
index d0b8d220..a0174dbe 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,10 @@
-oslo.config
-oslo.log
+# The order of packages is significant, because pip processes them in the order
+# of appearance. Changing the order has an impact on the overall integration
+# process, which may cause wedges in the gate later.
+oslo.config>=3.14.0 # Apache-2.0
+oslo.log>=1.14.0 # Apache-2.0
 
-six>=1.9.0
+six>=1.9.0 # MIT
 #influxdb==2.8.0
 #cassandra-driver>=2.1.4,!=3.6.0 # Apache-2.0
-monasca-common
+monasca-common>=1.0.0 # Apache-2.0
diff --git a/setup.py b/setup.py
index 13e75b0b..782bb21f 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,4 @@
-#!/usr/bin/env python
-
-# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
+# Copyright (c) 2013 Hewlett-Packard Development Company, L.P.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,8 +13,17 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# THIS FILE IS MANAGED BY THE GLOBAL REQUIREMENTS REPO - DO NOT EDIT
 import setuptools
 
+# In python < 2.7.4, a lazy loading of package `pbr` will break
+# setuptools if some other modules registered functions in `atexit`.
+# solution from: http://bugs.python.org/issue15881#msg170215
+try:
+    import multiprocessing  # noqa
+except ImportError:
+    pass
+
 setuptools.setup(
-    setup_requires=['pbr'],
+    setup_requires=['pbr>=1.8'],
     pbr=True)
diff --git a/test-requirements.txt b/test-requirements.txt
index fe61f878..964466aa 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,3 +1,6 @@
-hacking>=0.11.0,<0.12 # Apache-2.0
-nose
-mock>=1.0.1
+# The order of packages is significant, because pip processes them in the order
+# of appearance. Changing the order has an impact on the overall integration
+# process, which may cause wedges in the gate later.
+hacking<0.12,>=0.11.0 # Apache-2.0
+nose # LGPL
+mock>=2.0 # BSD