diff --git a/doc/requirements.txt b/doc/requirements.txt
index f5acad4e..40dba6d8 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -3,6 +3,6 @@
 # process, which may cause wedges in the gate later.
 # this is required for the docs build jobs
 sphinx!=1.6.6,>=1.6.2 # BSD
-openstackdocstheme>=1.17.0 # Apache-2.0
+openstackdocstheme>=1.18.1 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD