diff --git a/doc/requirements.txt b/doc/requirements.txt
index 6354511f4..e6b14a15d 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -3,5 +3,4 @@
 # process, which may cause wedges in the gate later.
 sphinx>=1.6.2 # BSD
 sphinxcontrib-blockdiag>=1.1.0
-oslosphinx>=4.7.0 # Apache-2.0
-openstackdocstheme>=1.17.0 # Apache-2.0
+openstackdocstheme>=1.18.1 # Apache-2.0
diff --git a/doc/source/conf.py b/doc/source/conf.py
index e22473782..067c0b587 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -22,7 +22,6 @@ sys.path.insert(0, os.path.abspath('../..'))
 extensions = [
     'sphinx.ext.autodoc',
     'openstackdocstheme',
-    'oslosphinx',
     'sphinxcontrib.blockdiag'
 ]