diff --git a/test-requirements.txt b/test-requirements.txt
index 287016a7..3aa6a701 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -12,7 +12,7 @@ testtools>=1.4.0 # MIT
 
 # Doc requirements
 sphinx>=1.6.2 # BSD
-openstackdocstheme>=1.11.0  # Apache-2.0
+openstackdocstheme>=1.11.0 # Apache-2.0
 
 # releasenotes
 reno!=2.3.1,>=1.8.0 # Apache-2.0