diff --git a/test-requirements.txt b/test-requirements.txt
index c243c75..3bcc68a 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -14,6 +14,6 @@ testtools>=2.2.0 # MIT
 six>=1.10.0 # MIT
 
 # this is required for the docs build jobs
-sphinx!=1.6.6,<1.7.0,>=1.6.2 # BSD
+sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
 openstackdocstheme>=1.18.1 # Apache-2.0