diff --git a/requirements.txt b/requirements.txt
index 57610e03..57ee11c4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,6 +2,6 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-pbr>=2.0.0 # Apache-2.0
-Flask>=0.10,!=0.11,<1.0 # BSD
-libvirt-python>=1.2.5 # LGPLv2+
+pbr!=2.1.0,>=2.0.0 # Apache-2.0
+Flask!=0.11,<1.0,>=0.10 # BSD
+libvirt-python>=3.5.0 # LGPLv2+
diff --git a/setup.py b/setup.py
index 3887303f..566d8443 100644
--- a/setup.py
+++ b/setup.py
@@ -25,5 +25,5 @@ except ImportError:
     pass
 
 setuptools.setup(
-    setup_requires=['pbr>=2.0'],
+    setup_requires=['pbr>=2.0.0'],
     pbr=True)
diff --git a/test-requirements.txt b/test-requirements.txt
index 34830e48..14748d08 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -4,11 +4,11 @@
 
 hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 
-coverage>=4.0 # Apache-2.0
-python-subunit>=0.0.18 # Apache-2.0/BSD
-sphinx>=1.5.1 # BSD
-openstackdocstheme>=1.11.0 # Apache-2.0
+coverage!=4.4,>=4.0 # Apache-2.0
+python-subunit>=1.0.0 # Apache-2.0/BSD
+sphinx>=1.6.2 # BSD
+openstackdocstheme>=1.17.0 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
-testrepository>=0.0.18  # Apache-2.0/BSD
-testscenarios>=0.4  # Apache-2.0/BSD
-testtools>=1.4.0 # MIT
+testrepository>=0.0.18 # Apache-2.0/BSD
+testscenarios>=0.4 # Apache-2.0/BSD
+testtools>=2.2.0 # MIT