diff --git a/test-requirements.txt b/test-requirements.txt
index b5667d2..fb97fc6 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -6,6 +6,6 @@
 
 sphinx!=1.6.6,!=1.6.7,>=1.6.2,<2.0.0;python_version=='2.7' # BSD
 sphinx!=1.6.6,!=1.6.7,>=1.6.2;python_version>='3.4' # BSD
-openstackdocstheme>=1.18.1 # Apache-2.0
+openstackdocstheme>=1.20.0 # Apache-2.0
 
 reno>=2.5.0 # Apache-2.0