diff --git a/requirements.txt b/requirements.txt
index b1919ad4..b957490a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,8 +31,8 @@ paramiko>=2.0 # LGPLv2.1+
 requests!=2.12.2,>=2.10.0 # Apache-2.0
 python-cinderclient!=1.7.0,!=1.7.1,>=1.6.0 # Apache-2.0
 python-keystoneclient>=3.8.0 # Apache-2.0
-python-manilaclient>=1.10.0 # Apache-2.0
-python-novaclient>=7.0.0 # Apache-2.0
+python-manilaclient>=1.12.0 # Apache-2.0
+python-novaclient!=7.0.0,>=6.0.0 # Apache-2.0
 python-swiftclient>=3.2.0 # Apache-2.0
 python-neutronclient>=5.1.0 # Apache-2.0
 python-heatclient>=1.6.1 # Apache-2.0