diff --git a/test-requirements.txt b/test-requirements.txt
index c36a1e9aa..971abc46b 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -9,7 +9,7 @@ coverage>=4.0 # Apache-2.0
 keystoneauth1>=2.18.0 # Apache-2.0
 python-pytun>=2.2.1 # MIT
 python-subunit>=0.0.18 # Apache-2.0/BSD
-sphinx!=1.3b1,<1.4,>=1.2.1 # BSD
+sphinx>=1.5.1 # BSD
 oslosphinx>=4.7.0 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
 testrepository>=0.0.18 # Apache-2.0/BSD