diff --git a/requirements.txt b/requirements.txt
index 8a1a000a..f22ff2e1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,30 +9,30 @@ iso8601>=0.1.9
 Jinja2>=2.8 # BSD License (3 clause)
 jsonschema!=2.5.0,<3.0.0,>=2.0.0
 netaddr!=0.7.16,>=0.7.12
-oslo.config>=2.7.0 # Apache-2.0
-oslo.db>=3.2.0 # Apache-2.0
-oslo.i18n>=1.5.0 # Apache-2.0
-oslo.log>=1.12.0 # Apache-2.0
-oslo.serialization>=1.10.0 # Apache-2.0
-oslo.utils>=2.8.0 # Apache-2.0
+oslo.config>=2.7.0,<3.0.0           # Apache-2.0
+oslo.db>=3.2.0,<4.0.0               # Apache-2.0
+oslo.i18n>=1.5.0,<3.0.0             # Apache-2.0
+oslo.log>=1.12.0,<2.0.0             # Apache-2.0
+oslo.serialization>=1.10.0,<2.0.0   # Apache-2.0
+oslo.utils>=2.8.0,<3.0.0            # Apache-2.0
 paramiko>=1.13.0
 pbr>=1.6
 PrettyTable<0.8,>=0.7
 PyYAML>=3.1.0
-python-designateclient>=1.5.0
-python-glanceclient>=0.18.0
-python-keystoneclient!=1.8.0,>=1.6.0
-python-novaclient!=2.33.0,>=2.29.0
-python-neutronclient>=2.6.0
-python-cinderclient>=1.3.1
-python-manilaclient>=1.3.0
-python-heatclient>=0.6.0
-python-ceilometerclient>=2.0.0
-python-ironicclient>=0.8.0
-python-saharaclient>=0.10.0
-python-troveclient>=1.2.0
-python-zaqarclient>=0.3.0
-python-swiftclient>=2.2.0
+python-designateclient==1.5.0
+python-glanceclient>=0.18.0,<=1.19.0
+python-keystoneclient!=1.8.0,>=1.6.0,<2.0.0
+python-novaclient!=2.33.0,>=2.29.0,<=2.35.0
+python-neutronclient>=2.6.0,<=3.1.0
+python-cinderclient>=1.3.1,<=1.5.0
+python-manilaclient>=1.3.0,<=1.5.0
+python-heatclient>=0.6.0,<=0.8.0
+python-ceilometerclient>=2.0.0,<=2.0.1
+python-ironicclient>=0.8.0,<1.0.0
+python-saharaclient>=0.10.0,<=0.11.1
+python-troveclient>=1.2.0,<=1.4.0
+python-zaqarclient==0.3.0,
+python-swiftclient>=2.2.0,<=2.6.0
 python-subunit>=0.0.18
 requests>=2.8.1
 SQLAlchemy<1.1.0,>=0.9.9