diff --git a/doc/requirements.txt b/doc/requirements.txt
index 4971ad1..490d956 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -2,6 +2,6 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-openstackdocstheme>=1.18.1 # Apache-2.0
-sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
-reno>=2.5.0 # Apache-2.0
+openstackdocstheme>=2.2.1 # Apache-2.0
+sphinx>=2.0.0,!=2.1.0 # BSD
+reno>=3.1.0 # Apache-2.0
diff --git a/doc/source/conf.py b/doc/source/conf.py
index 1c04ee3..5d028d6 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -40,10 +40,10 @@ master_doc = 'index'
 copyright = u'2018, OpenStack Developers'
 
 # openstackdocstheme options
-repository_name = 'openstack/tacker-horizon'
-bug_project = 'tacker'
-bug_tag = ''
-html_last_updated_fmt = '%Y-%m-%d %H:%M'
+openstackdocs_repo_name = 'openstack/tacker-horizon'
+openstackdocs_pdf_link = True
+openstackdocs_bug_project = 'tacker'
+openstackdocs_bug_tag = ''
 
 # If true, '()' will be appended to :func: etc. cross-reference text.
 add_function_parentheses = True
@@ -53,7 +53,7 @@ add_function_parentheses = True
 add_module_names = True
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = 'native'
 
 # -- Options for HTML output --------------------------------------------------
 
diff --git a/lower-constraints.txt b/lower-constraints.txt
index 260b21b..739d62e 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -89,7 +89,6 @@ python-swiftclient==3.2.0
 python-tackerclient==0.8.0
 pytz==2018.3
 PyYAML==3.12
-reno==2.5.0
 requests==2.18.4
 requestsexceptions==1.4.0
 rfc3986==1.1.0
@@ -97,8 +96,6 @@ semantic-version==2.3.1
 simplejson==3.13.2
 six==1.11.0
 snowballstemmer==1.2.1
-Sphinx==1.6.5
-sphinxcontrib-websupport==1.0.1
 stevedore==1.28.0
 termcolor==1.1.0
 traceback2==1.4.0