diff --git a/requirements.txt b/requirements.txt
index d268274..9c6f76a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,10 +3,10 @@
 # process, which may cause wedges in the gate later.
 cliff>=1.14.0 # Apache-2.0
 jsonschema!=2.5.0,<3.0.0,>=2.0.0
-oslo.utils>=2.0.0 # Apache-2.0
+oslo.utils!=2.6.0,>=2.4.0 # Apache-2.0
 pbr>=1.6
-python-keystoneclient>=1.6.0
-requests>=2.5.2
+python-keystoneclient!=1.8.0,>=1.6.0
+requests!=2.8.0,>=2.5.2
 six>=1.9.0
 stevedore>=1.5.0 # Apache-2.0
 debtcollector>=0.3.0 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index ba8bad5..ae8c5c1 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -12,4 +12,4 @@ requests-mock>=0.6.0 # Apache-2.0
 sphinx!=1.2.0,!=1.3b1,<1.3,>=1.1.2
 testrepository>=0.0.18
 oslosphinx>=2.5.0 # Apache-2.0
-tempest-lib>=0.8.0
+tempest-lib>=0.10.0