diff --git a/doc/source/conf.py b/doc/source/conf.py
index cda54be4d..26cedab94 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -4,9 +4,14 @@
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
 extensions = ['sphinx.ext.autodoc',
               'sphinx.ext.viewcode',
-              'oslosphinx',
+              'openstackdocstheme',
               ]
 
+# openstackdocstheme options
+repository_name = 'openstack/python-ironicclient'
+bug_project = 'python-ironicclient'
+bug_tag = ''
+
 # autodoc generation is a bit aggressive and a nuisance when doing heavy
 # text edit cycles.
 # execute "export SPHINX_DEBUG=1" in your terminal to disable
@@ -49,6 +54,9 @@ exclude_patterns = ['api/ironicclient.tests.functional.*']
 #html_theme_path = ["."]
 #html_theme = '_theme'
 #html_static_path = ['_static']
+html_theme = 'openstackdocs'
+
+html_last_updated_fmt = '%Y-%m-%d %H:%M'
 
 # Output file base name for HTML help builder.
 htmlhelp_basename = '%sdoc' % project
diff --git a/releasenotes/source/conf.py b/releasenotes/source/conf.py
index 6ac629d8e..8f30b28a4 100644
--- a/releasenotes/source/conf.py
+++ b/releasenotes/source/conf.py
@@ -38,10 +38,15 @@
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
 extensions = [
-    'oslosphinx',
+    'openstackdocstheme',
     'reno.sphinxext',
 ]
 
+# openstackdocstheme options
+repository_name = 'openstack/python-ironicclient'
+bug_project = 'python-ironicclient'
+bug_tag = ''
+
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']
 
@@ -112,7 +117,7 @@ pygments_style = 'sphinx'
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
-html_theme = 'default'
+html_theme = 'openstackdocs'
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
@@ -150,7 +155,7 @@ html_static_path = ['_static']
 
 # If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
 # using the given strftime format.
-# html_last_updated_fmt = '%b %d, %Y'
+html_last_updated_fmt = '%Y-%m-%d %H:%M'
 
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.
diff --git a/test-requirements.txt b/test-requirements.txt
index 7df6eae5e..40709ed13 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -8,7 +8,7 @@ fixtures>=3.0.0 # Apache-2.0/BSD
 requests-mock>=1.1 # Apache-2.0
 mock>=2.0 # BSD
 Babel!=2.4.0,>=2.3.4 # BSD
-oslosphinx>=4.7.0 # Apache-2.0
+openstackdocstheme>=1.11.0 # Apache-2.0
 reno!=2.3.1,>=1.8.0 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
 python-subunit>=0.0.18 # Apache-2.0/BSD