diff --git a/test-requirements.txt b/test-requirements.txt
index 01f537b3..fd4f1934 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -11,5 +11,5 @@ oslotest>=1.10.0 # Apache-2.0
 os-testr>=0.8.0 # Apache-2.0
 reno>=1.8.0 # Apache-2.0
 requests-mock>=1.1 # Apache-2.0
-sphinx!=1.3b1,<1.4,>=1.2.1 # BSD
+sphinx>=1.5.1 # BSD
 testrepository>=0.0.18 # Apache-2.0/BSD