Updated from global requirements

Change-Id: I6d9019a448f80e72f0bd49e5aa6a3ace2eefe9dc
diff --git a/test-requirements.txt b/test-requirements.txt
index a89f7d2..b858041 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -5,7 +5,7 @@
 hacking<0.13,>=0.12.0 # Apache-2.0
 
 python-subunit>=1.0.0 # Apache-2.0/BSD
-sphinx!=1.6.6,>=1.6.2 # BSD
+sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
 oslosphinx>=4.7.0 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0
 testrepository>=0.0.18 # Apache-2.0/BSD