Updated from global requirements

Change-Id: Ia0bcd60843a3cabed0295df485b54246e657f1ed
diff --git a/test-requirements.txt b/test-requirements.txt
index 9898d4a..8a97494 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -4,7 +4,7 @@
 hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 
 sphinx>=1.6.2 # BSD
-openstackdocstheme>=1.11.0 # Apache-2.0
+openstackdocstheme>=1.16.0 # Apache-2.0
 reno!=2.3.1,>=1.8.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
 mock>=2.0 # BSD