diff --git a/test-requirements.txt b/test-requirements.txt
index d0a9110b9..0f951de37 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -8,7 +8,7 @@ fixtures>=3.0.0 # Apache-2.0/BSD
 mock>=2.0 # BSD
 python-subunit>=0.0.18 # Apache-2.0/BSD
 requests-mock>=1.1 # Apache-2.0
-sphinx!=1.3b1,<1.3,>=1.2.1 # BSD
+sphinx!=1.3b1,<1.4,>=1.2.1 # BSD
 oslosphinx>=4.7.0 # Apache-2.0
 oslo.concurrency>=3.8.0 # Apache-2.0
 testrepository>=0.0.18 # Apache-2.0/BSD