diff --git a/requirements.txt b/requirements.txt
index 41709771a..c5aba862c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,5 +42,5 @@ PyYAML>=3.10 # MIT
 requests>=2.14.2 # Apache-2.0
 WebOb>=1.7.1 # MIT
 eventlet!=0.18.3,!=0.20.1,<0.21.0,>=0.18.2 # MIT
-six>=1.9.0 # MIT
+six>=1.10.0 # MIT
 
diff --git a/test-requirements.txt b/test-requirements.txt
index 293969acb..e11f9a3b9 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -13,7 +13,7 @@ python-cinderclient>=3.2.0 # Apache-2.0
 python-neutronclient>=6.3.0 # Apache-2.0
 python-novaclient>=9.1.0 # Apache-2.0
 python-heatclient>=1.10.0 # Apache-2.0
-python-subunit>=0.0.18 # Apache-2.0/BSD
+python-subunit>=1.0.0 # Apache-2.0/BSD
 pyzabbix>=0.7.4 # LGPL
 oslo.db>=4.27.0 # Apache-2.0
 oslo.log>=3.30.0 # Apache-2.0
@@ -28,7 +28,7 @@ requests-mock>=1.1.0 # Apache-2.0
 tempest-lib>=1.0.0 # 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
 stevedore>=1.20.0 # Apache-2.0
 voluptuous>=0.8.9 # BSD License
 sympy>=0.7.6 # BSD