diff --git a/test-requirements.txt b/test-requirements.txt
index e2d301b3..7c11cee0 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -7,7 +7,7 @@ coverage!=4.4,>=4.0 # Apache-2.0
 doc8 # Apache-2.0
 ddt>=1.0.1 # MIT
 hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
-openstackdocstheme>=1.11.0  # Apache-2.0
+openstackdocstheme>=1.11.0 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
 osprofiler>=1.4.0 # Apache-2.0
 os-testr>=0.8.0 # Apache-2.0