diff --git a/requirements.txt b/requirements.txt
index cb57ba5..a40ca9b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,5 +3,5 @@ argparse
 PrettyTable>=0.6,<0.8
 requests>=1.1
 simplejson>=2.0.9
-Babel>=0.9.6
-six
+Babel>=1.3
+six>=1.4.1
diff --git a/setup.py b/setup.py
index 2a0786a..70c2b3f 100644
--- a/setup.py
+++ b/setup.py
@@ -18,5 +18,5 @@
 import setuptools
 
 setuptools.setup(
-    setup_requires=['pbr>=0.5.21,<1.0'],
+    setup_requires=['pbr'],
     pbr=True)
diff --git a/test-requirements.txt b/test-requirements.txt
index 30c33c0..b035f15 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,12 +1,12 @@
 # Install bounded pep8/pyflakes first, then let flake8 install
 pep8==1.4.5
-pyflakes==0.7.2
+pyflakes>=0.7.2,<0.7.4
 flake8==2.0
-hacking>=0.5.6,<0.7
+hacking>=0.5.6,<0.8
 coverage>=3.6
 discover
-fixtures>=0.3.12
-mock>=0.8.0
+fixtures>=0.3.14
+mock>=1.0
 python-subunit
 sphinx>=1.1.2
 testtools>=0.9.32