diff --git a/doc/requirements.txt b/doc/requirements.txt
index e34e3812bf..ff306c4456 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,4 +1,4 @@
-openstackdocstheme>=2.2.0 # Apache-2.0
+openstackdocstheme>=3.5.0 # Apache-2.0
 os-api-ref>=1.4.0 # Apache-2.0
 reno>=3.1.0 # Apache-2.0
 sphinx>=2.0.0 # BSD