diff --git a/requirements.txt b/requirements.txt
index 1948b03..687ba47 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,6 @@
 # process, which may cause wedges in the gate later.
 
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
-six>=1.9.0 # MIT
+six>=1.10.0 # MIT
 wrapt>=1.7.0 # BSD License
 funcsigs>=1.0.0;python_version=='2.7' or python_version=='2.6' # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index 467b9e1..b8d041d 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -5,11 +5,11 @@
 hacking<0.11,>=0.10.0
 
 coverage!=4.4,>=4.0 # Apache-2.0
-python-subunit>=0.0.18 # Apache-2.0/BSD
+python-subunit>=1.0.0 # Apache-2.0/BSD
 sphinx>=1.6.2 # BSD
 openstackdocstheme>=1.17.0 # Apache-2.0
 testrepository>=0.0.18 # Apache-2.0/BSD
-testtools>=1.4.0 # MIT
+testtools>=2.2.0 # MIT
 fixtures>=3.0.0 # Apache-2.0/BSD
 doc8>=0.6.0 # Apache-2.0
 reno>=2.5.0 # Apache-2.0