diff --git a/requirements.txt b/requirements.txt
index 6b6e634637..88b894dbd6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ keystoneauth1>=3.2.0 # Apache-2.0
 keystonemiddleware>=4.17.0 # Apache-2.0
 python-neutronclient>=6.3.0 # Apache-2.0
 WebOb>=1.7.1 # MIT
-six>=1.9.0 # MIT
+six>=1.10.0 # MIT
 stevedore>=1.20.0 # Apache-2.0
 oslo.config>=4.6.0 # Apache-2.0
 oslo.context>=2.19.2 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index 02c7bb2948..105a6150b1 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -6,12 +6,12 @@ requests-mock>=1.1.0 # Apache-2.0
 coverage!=4.4,>=4.0 # Apache-2.0
 flake8-import-order==0.12 # LGPLv3
 mock>=2.0.0 # BSD
-python-subunit>=0.0.18 # Apache-2.0/BSD
+python-subunit>=1.0.0 # Apache-2.0/BSD
 os-api-ref>=1.4.0 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
 pylint==1.4.5 # GPLv2
 testrepository>=0.0.18 # Apache-2.0/BSD
-testtools>=1.4.0 # MIT
+testtools>=2.2.0 # MIT
 testresources>=2.0.0 # Apache-2.0/BSD
 testscenarios>=0.4 # Apache-2.0/BSD
 doc8>=0.6.0 # Apache-2.0