diff --git a/requirements.txt b/requirements.txt
index e52e3258..199b431e 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
 requests>=2.14.2 # Apache-2.0
-six>=1.9.0 # MIT
+six>=1.10.0 # MIT
 stevedore>=1.20.0 # Apache-2.0
 jsonschema<3.0.0,>=2.6.0 # MIT
 
diff --git a/test-requirements.txt b/test-requirements.txt
index dfa73594..bddb3c13 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -7,9 +7,9 @@ hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 # Unit testing
 fixtures>=3.0.0 # Apache-2.0/BSD
 mock>=2.0.0 # 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
-testtools>=1.4.0 # MIT
+testtools>=2.2.0 # MIT
 
 # Test runner
 nose>=1.3.7 # LGPL