diff --git a/doc/requirements.txt b/doc/requirements.txt
index feb950de..b61dbd15 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -4,7 +4,7 @@
 
 # For generating sphinx documentation
 doc8>=0.6.0 # Apache-2.0
-openstackdocstheme>=1.17.0 # Apache-2.0
+openstackdocstheme>=1.18.1 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
 sphinx!=1.6.6,>=1.6.2 # BSD