diff --git a/requirements.txt b/requirements.txt
index afffee14..803e5a66 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@
 # that is a likely indicator that the feature belongs somewhere else.
 
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
-six>=1.9.0 # MIT
+six>=1.10.0 # MIT
 funcsigs>=1.0.0;python_version=='2.7' or python_version=='2.6' # Apache-2.0
 iso8601>=0.1.11 # MIT
 oslo.i18n>=3.15.3 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index 5fdac01f..227c0372 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -5,10 +5,10 @@
 hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 
 fixtures>=3.0.0 # Apache-2.0/BSD
-python-subunit>=0.0.18 # Apache-2.0/BSD
+python-subunit>=1.0.0 # Apache-2.0/BSD
 testrepository>=0.0.18 # Apache-2.0/BSD
 testscenarios>=0.4 # Apache-2.0/BSD
-testtools>=1.4.0 # MIT
+testtools>=2.2.0 # MIT
 oslotest>=1.10.0 # Apache-2.0
 
 # when we can require tox>= 1.4, this can go into tox.ini: