diff --git a/openstack/python-openstackclient/centos/build_srpm.data b/openstack/python-openstackclient/centos/build_srpm.data
index df27d25b..32da9a1d 100644
--- a/openstack/python-openstackclient/centos/build_srpm.data
+++ b/openstack/python-openstackclient/centos/build_srpm.data
@@ -1,4 +1,4 @@
 TAR_NAME=python-openstackclient
 SRC_DIR="$CGCS_BASE/git/python-openstackclient"
-TIS_BASE_SRCREV="3.18.0"
+TIS_BASE_SRCREV="4.0.0"
 TIS_PATCH_VER=GITREVCOUNT
diff --git a/openstack/python-openstackclient/centos/python-openstackclient.spec b/openstack/python-openstackclient/centos/python-openstackclient.spec
index 550c2fca..9967ae12 100644
--- a/openstack/python-openstackclient/centos/python-openstackclient.spec
+++ b/openstack/python-openstackclient/centos/python-openstackclient.spec
@@ -16,7 +16,7 @@ It is a thin wrapper to the stock python-*client modules that implement the \
 actual REST API client actions.
 
 Name:             python-openstackclient
-Version:          3.18.0
+Version:          4.0.0
 Release:          1%{?_tis_dist}.%{tis_patch_ver}
 Summary:          OpenStack Command-line Client
 
@@ -76,17 +76,17 @@ BuildRequires:    python2-osprofiler
 
 Requires:         python2-pbr
 Requires:         python2-babel
-Requires:         python2-openstacksdk >= 0.11.2
+Requires:         python2-openstacksdk >= 0.17.0
 Requires:         python2-oslo-i18n >= 3.15.3
 Requires:         python2-oslo-utils >= 3.33.0
 Requires:         python2-glanceclient >= 1:2.8.0
-Requires:         python2-keystoneauth1 >= 3.4.0
+Requires:         python2-keystoneauth1 >= 3.6.2
 Requires:         python2-keystoneclient >= 1:3.17.0
-Requires:         python2-novaclient >= 9.1.0
+Requires:         python2-novaclient >= 15.0.0
 Requires:         python2-cinderclient >= 3.3.0
 Requires:         python2-neutronclient >= 6.7.0
 Requires:         python2-six >= 1.10.0
-Requires:         python2-osc-lib >= 1.10.0
+Requires:         python2-osc-lib >= 1.14.0
 %if 0%{?fedora} > 0
 Requires:         python2-cliff
 %else
@@ -159,17 +159,17 @@ BuildRequires:    python3-osprofiler
 Requires:         python3-pbr
 Requires:         python3-babel
 Requires:         python3-cliff
-Requires:         python3-openstacksdk >= 0.11.2
+Requires:         python3-openstacksdk >= 0.17.0
 Requires:         python3-oslo-i18n >= 3.15.3
 Requires:         python3-oslo-utils >= 3.33.0
 Requires:         python3-glanceclient >= 1:2.8.0
-Requires:         python3-keystoneauth1 >= 3.4.0
+Requires:         python3-keystoneauth1 >= 3.6.2
 Requires:         python3-keystoneclient >= 1:3.17.0
-Requires:         python3-novaclient >= 9.1.0
+Requires:         python3-novaclient >= 15.0.0
 Requires:         python3-cinderclient >= 3.3.0
 Requires:         python3-neutronclient >= 6.7.0
 Requires:         python3-six >= 1.10.0
-Requires:         python3-osc-lib >= 1.10.0
+Requires:         python3-osc-lib >= 1.14.0
 Requires:         python-%{client}-lang = %{version}-%{release}
 
 %description -n python3-%{client}