diff --git a/requirements.txt b/requirements.txt
index a486611..d5a86a1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
-Babel>=0.9.6
+Babel>=1.3
 six>=1.7.0
 # Only for timeutils in openstack.common - once we're using the
 # library version this can be removed.
 iso8601>=0.1.9
-oslo.utils>=0.2.0
+oslo.utils>=0.2.0                       # Apache-2.0
diff --git a/setup.py b/setup.py
index 70c2b3f..7363757 100755
--- a/setup.py
+++ b/setup.py
@@ -17,6 +17,14 @@
 # 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'],
     pbr=True)
diff --git a/test-requirements.txt b/test-requirements.txt
index a3504ed..916ebf7 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,11 +1,11 @@
 hacking>=0.5.6,<0.8
 mock>=1.0
-netaddr
+netaddr>=0.7.6
 
 # this is required for the docs build jobs
 sphinx>=1.1.2,!=1.2.0,<1.3
-oslosphinx
+oslosphinx>=2.2.0.0a2
 
-oslotest
-simplejson
-oslo.i18n>=0.2.0
+oslotest>=1.1.0.0a1
+simplejson>=2.0.9
+oslo.i18n>=0.2.0  # Apache-2.0