diff --git a/test-requirements.txt b/test-requirements.txt
index 5ba86fd..397a3b0 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -14,6 +14,6 @@ testtools>=2.2.0 # MIT
 requests-mock>=1.1.0 # Apache-2.0
 
 # Doc requirements
-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