diff --git a/doc/requirements.txt b/doc/requirements.txt
index 711fb972..e6bf20b9 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,4 +1,3 @@
-sphinx!=1.6.6,!=1.6.7,>=1.6.2,<2.0.0;python_version=='2.7' # BSD
-sphinx!=1.6.6,!=1.6.7,>=1.6.2;python_version>='3.4' # BSD
-openstackdocstheme>=1.18.1 # Apache-2.0
+sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
+openstackdocstheme>=1.32.1 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
diff --git a/doc/source/conf.py b/doc/source/conf.py
index a2a02dba..15fd521b 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -65,7 +65,6 @@ html_theme = 'openstackdocs'
 repository_name = 'openstack/python-magnumclient'
 bug_project = 'python-magnumclient'
 bug_tag = ''
-html_last_updated_fmt = '%Y-%m-%d %H:%M'
 
 
 # Output file base name for HTML help builder.
diff --git a/lower-constraints.txt b/lower-constraints.txt
index e989e565..a8da2e8c 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -47,7 +47,7 @@ msgpack-python==0.4.0
 munch==2.1.0
 netaddr==0.7.18
 netifaces==0.10.4
-openstackdocstheme==1.18.1
+openstackdocstheme==1.32.1
 openstacksdk==0.11.2
 os-client-config==1.28.0
 os-service-types==1.2.0
diff --git a/setup.cfg b/setup.cfg
index fe3e0f8e..fa264812 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -6,6 +6,7 @@ description-file =
 author = OpenStack
 author-email = openstack-discuss@lists.openstack.org
 home-page = https://docs.openstack.org/python-magnumclient/latest/
+python-requires = >=3.6
 classifier =
     Environment :: OpenStack
     Intended Audience :: Information Technology
@@ -13,6 +14,8 @@ classifier =
     License :: OSI Approved :: Apache Software License
     Operating System :: POSIX :: Linux
     Programming Language :: Python
+    Programming Language :: Python :: Implementation :: CPython
+    Programming Language :: Python :: 3 :: Only
     Programming Language :: Python :: 2
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.6
@@ -75,6 +78,3 @@ input_file = magnumclient/locale/magnumclient.pot
 keywords = _ gettext ngettext l_ lazy_gettext
 mapping_file = babel.cfg
 output_file = magnumclient/locale/magnumclient.pot
-
-[wheel]
-universal = 1
diff --git a/setup.py b/setup.py
index 566d8443..cd35c3c3 100644
--- a/setup.py
+++ b/setup.py
@@ -13,17 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# THIS FILE IS MANAGED BY THE GLOBAL REQUIREMENTS REPO - DO NOT EDIT
 import setuptools
 
-# In python < 2.7.4, a lazy loading of package `pbr` will break
-# setuptools if some other modules registered functions in `atexit`.
-# solution from: http://bugs.python.org/issue15881#msg170215
-try:
-    import multiprocessing  # noqa
-except ImportError:
-    pass
-
 setuptools.setup(
     setup_requires=['pbr>=2.0.0'],
     pbr=True)