diff --git a/requirements.txt b/requirements.txt
index 3410b2d..07c16d6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ oslo.config>=4.6.0 # Apache-2.0
 oslo.context>=2.19.2 # Apache-2.0
 oslo.i18n>=3.15.3 # Apache-2.0
 oslo.utils>=3.31.0 # Apache-2.0
-six>=1.9.0 # MIT
+six>=1.10.0 # MIT
 stevedore>=1.20.0 # Apache-2.0
 WebOb>=1.7.1 # MIT
 debtcollector>=1.2.0 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index 6a97a6f..566b29b 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -8,7 +8,7 @@ mock>=2.0.0 # BSD
 openstackdocstheme>=1.17.0 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
 sphinx>=1.6.2 # BSD
-testtools>=1.4.0 # MIT
+testtools>=2.2.0 # MIT
 coverage!=4.4,>=4.0 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
 oslo.serialization!=2.19.1,>=2.18.0 # Apache-2.0