diff --git a/requirements.txt b/requirements.txt
index 8551fce..8aa055b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,5 +4,5 @@
 oslo.config>=4.6.0 # Apache-2.0
 oslo.serialization!=2.19.1,>=2.18.0 # Apache-2.0
 pytz>=2013.6 # MIT
-six>=1.9.0 # MIT
+six>=1.10.0 # MIT
 debtcollector>=1.2.0 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index cd0c847..3f573fe 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -8,9 +8,9 @@ flake8-docstrings==0.2.1.post1 # MIT
 coverage!=4.4,>=4.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
 oslotest>=1.10.0 # Apache-2.0
-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
 
 # this is required for the docs build jobs
 openstackdocstheme>=1.17.0 # Apache-2.0