diff --git a/test-requirements.txt b/test-requirements.txt
index e9d5a33e1..0b58bb3c2 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -7,7 +7,7 @@ hacking<0.11,>=0.10.0
 ansible-lint
 coverage>=3.6
 python-subunit>=0.0.18
-sphinx>=1.3
+sphinx>=1.3,!=1.6.1
 oslosphinx>=2.5.0 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
 sphinx_rtd_theme