diff --git a/requirements.txt b/requirements.txt
index f998833949..249dd59fcb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,13 +5,13 @@
 pbr>=0.6,!=0.7,<1.0
 Babel>=1.3
 
-oslo.concurrency>=0.1.0
-oslo.config>=1.4.0
+oslo.concurrency>=0.3.0  # Apache-2.0
+oslo.config>=1.6.0
 oslo.context>=0.1.0  # Apache-2.0
-oslo.db>=0.2.0  # Apache-2.0
-oslo.messaging>=1.4.0
-oslo.serialization>=1.0.0
-oslo.utils>=1.0.0
+oslo.db>=1.3.0  # Apache-2.0
+oslo.messaging>=1.4.0,!=1.5.0
+oslo.serialization>=1.2.0               # Apache-2.0
+oslo.utils>=1.2.0                       # Apache-2.0
 paramiko>=1.13.0
 pecan>=0.8.0
 keystonemiddleware>=1.0.0
@@ -19,7 +19,7 @@ python-heatclient>=0.2.9
 python-keystoneclient>=0.11.1
 python-zaqarclient>=0.0.3
 six>=1.7.0
-SQLAlchemy>=0.8.4,!=0.9.5,<=0.9.99
+SQLAlchemy>=0.9.7,<=0.9.99
 WSME>=0.6
 docker-py>=0.5.1
 jsonpatch>=1.1
diff --git a/setup.py b/setup.py
index 70c2b3f32b..736375744d 100644
--- 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 50499e4d65..470c8faf6c 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -15,4 +15,4 @@ oslosphinx>=2.2.0
 oslotest>=1.2.0
 testrepository>=0.0.18
 testscenarios>=0.4
-testtools>=0.9.36,!=1.2.0,!=1.4.0
+testtools>=0.9.36,!=1.2.0