diff --git a/requirements.txt b/requirements.txt
index 2a2d204e..dc47abe8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,18 +1,18 @@
 # 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.
-pbr>=1.8 # Apache-2.0
+pbr>=2.0.0 # Apache-2.0
 
 Babel>=2.3.4 # BSD
 six>=1.9.0 # MIT
 keystoneauth1>=2.18.0 # Apache-2.0
-stevedore>=1.17.1 # Apache-2.0
+stevedore>=1.20.0 # Apache-2.0
 requests!=2.12.2,!=2.13.0,>=2.10.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0
-oslo.utils>=3.18.0 # Apache-2.0
+oslo.utils>=3.20.0 # Apache-2.0
 os-client-config>=1.22.0 # Apache-2.0
 osc-lib>=1.2.0 # Apache-2.0
 PrettyTable<0.8,>=0.7.1 # BSD
-cryptography!=1.3.0,>=1.0 # BSD/Apache-2.0
+cryptography>=1.6 # BSD/Apache-2.0
 decorator>=3.4.0 # BSD
diff --git a/setup.py b/setup.py
index 782bb21f..566d8443 100644
--- a/setup.py
+++ b/setup.py
@@ -25,5 +25,5 @@ except ImportError:
     pass
 
 setuptools.setup(
-    setup_requires=['pbr>=1.8'],
+    setup_requires=['pbr>=2.0.0'],
     pbr=True)
diff --git a/test-requirements.txt b/test-requirements.txt
index 235bf5e5..82754f5a 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,7 +1,7 @@
 # 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,!=0.13.0,<0.14  # Apache-2.0
+hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 bandit>=1.1.0 # Apache-2.0
 coverage>=4.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD