diff --git a/doc/requirements.txt b/doc/requirements.txt
index e84339bb0..fada2eb09 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,4 +1,3 @@
 sphinx>=1.6.2 # BSD
-oslosphinx>=4.7.0 # Apache-2.0
 openstackdocstheme>=1.17.0 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
diff --git a/doc/source/conf.py b/doc/source/conf.py
index ff087cade..2d0ee4ac4 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -48,7 +48,7 @@ extensions = ['sphinx.ext.autodoc',
               'sphinx.ext.ifconfig',
               'sphinx.ext.graphviz',
               'sphinx.ext.todo',
-              'oslosphinx']
+              'openstackdocstheme']
 
 todo_include_todos = True
 
diff --git a/lower-constraints.txt b/lower-constraints.txt
index 6870ef87b..11bdd45c5 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -78,7 +78,6 @@ oslo.serialization==2.18.0
 oslo.service==1.24.0
 oslo.utils==3.33.0
 oslo.versionedobjects==1.31.2
-oslosphinx==4.7.0
 oslotest==3.2.0
 osprofiler==1.4.0
 ovs==2.8.0