diff --git a/requirements.txt b/requirements.txt
index 681b38abc..a9621dfd7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,48 +2,48 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-apscheduler # MIT License
-enum34;python_version=='2.7' or python_version=='2.6' or python_version=='3.3' # BSD
-jsonpatch!=1.20 # BSD
-keystoneauth1 # Apache-2.0
-jsonschema<3.0.0 # MIT
-keystonemiddleware # Apache-2.0
-lxml!=3.7.0 # BSD
-croniter # MIT License
-oslo.concurrency # Apache-2.0
-oslo.cache # Apache-2.0
-oslo.config!=4.3.0,!=4.4.0 # Apache-2.0
-oslo.context # Apache-2.0
-oslo.db # Apache-2.0
-oslo.i18n # Apache-2.0
-oslo.log # Apache-2.0
-oslo.messaging # Apache-2.0
-oslo.policy # Apache-2.0
-oslo.reports # Apache-2.0
-oslo.serialization!=2.19.1 # Apache-2.0
-oslo.service!=1.28.1 # Apache-2.0
-oslo.utils # Apache-2.0
-oslo.versionedobjects # Apache-2.0
-PasteDeploy # MIT
-pbr!=2.1.0 # Apache-2.0
-pecan!=1.0.2,!=1.0.3,!=1.0.4,!=1.2 # BSD
-PrettyTable<0.8 # BSD
-voluptuous # BSD License
-gnocchiclient # Apache-2.0
-python-ceilometerclient # Apache-2.0
-python-cinderclient # Apache-2.0
-python-glanceclient # Apache-2.0
-python-keystoneclient!=2.1.0 # Apache-2.0
-python-monascaclient # Apache-2.0
-python-neutronclient # Apache-2.0
-python-novaclient # Apache-2.0
-python-openstackclient # Apache-2.0
-python-ironicclient # Apache-2.0
-six # MIT
-SQLAlchemy!=1.1.5,!=1.1.6,!=1.1.7,!=1.1.8 # MIT
-stevedore # Apache-2.0
-taskflow # Apache-2.0
-WebOb # MIT
-WSME # MIT
-networkx<2.0 # BSD
+apscheduler>=3.5.1 # MIT License
+enum34>=1.1.6;python_version=='2.7' or python_version=='2.6' or python_version=='3.3' # BSD
+jsonpatch>=1.21 # BSD
+keystoneauth1>=3.4.0 # Apache-2.0
+jsonschema<3.0.0,>=2.6.0 # MIT
+keystonemiddleware>=4.21.0 # Apache-2.0
+lxml>=4.1.1 # BSD
+croniter>=0.3.20 # MIT License
+oslo.concurrency>=3.26.0 # Apache-2.0
+oslo.cache>=1.29.0 # Apache-2.0
+oslo.config>=5.2.0 # Apache-2.0
+oslo.context>=2.20.0 # Apache-2.0
+oslo.db>=4.35.0 # Apache-2.0
+oslo.i18n>=3.20.0 # Apache-2.0
+oslo.log>=3.37.0 # Apache-2.0
+oslo.messaging>=5.36.0 # Apache-2.0
+oslo.policy>=1.34.0 # Apache-2.0
+oslo.reports>=1.27.0 # Apache-2.0
+oslo.serialization>=2.25.0 # Apache-2.0
+oslo.service>=1.30.0 # Apache-2.0
+oslo.utils>=3.36.0 # Apache-2.0
+oslo.versionedobjects>=1.32.0 # Apache-2.0
+PasteDeploy>=1.5.2 # MIT
+pbr>=3.1.1 # Apache-2.0
+pecan>=1.2.1 # BSD
+PrettyTable<0.8,>=0.7.2 # BSD
+voluptuous>=0.11.1 # BSD License
+gnocchiclient>=7.0.1 # Apache-2.0
+python-ceilometerclient>=2.9.0 # Apache-2.0
+python-cinderclient>=3.5.0 # Apache-2.0
+python-glanceclient>=2.9.1 # Apache-2.0
+python-keystoneclient>=3.15.0 # Apache-2.0
+python-monascaclient>=1.10.0 # Apache-2.0
+python-neutronclient>=6.7.0 # Apache-2.0
+python-novaclient>=10.1.0 # Apache-2.0
+python-openstackclient>=3.14.0 # Apache-2.0
+python-ironicclient>=2.3.0 # Apache-2.0
+six>=1.11.0 # MIT
+SQLAlchemy>=1.2.5 # MIT
+stevedore>=1.28.0 # Apache-2.0
+taskflow>=3.1.0 # Apache-2.0
+WebOb>=1.7.4 # MIT
+WSME>=0.9.2 # MIT
+networkx>=1.11 # BSD