diff --git a/requirements.txt b/requirements.txt
index bbc4202..fe72308 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@
 # 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
 libvirt-python>=3.5.0 # LGPLv2+
 pyghmi>=1.0.22 # Apache-2.0
 PrettyTable<0.8,>=0.7.1 # BSD
diff --git a/test-requirements.txt b/test-requirements.txt
index aeae35b..c9ffcae 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -6,13 +6,13 @@ hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 
 coverage!=4.4,>=4.0 # Apache-2.0
 doc8>=0.6.0 # 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
 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
+testtools>=2.2.0 # MIT
 os-testr>=1.0.0 # Apache-2.0
 mock>=2.0.0 # BSD