diff --git a/test-requirements.txt b/test-requirements.txt
index ce8597b..d34ba9a 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -8,7 +8,7 @@ flake8-docstrings==0.2.1.post1 # MIT
 
 coverage>=3.6 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
-sphinx!=1.3b1,<1.3,>=1.2.1 # BSD
+sphinx!=1.3b1,<1.4,>=1.2.1 # BSD
 testrepository>=0.0.18 # Apache-2.0/BSD
 testresources>=0.2.4 # Apache-2.0/BSD
 testtools>=1.4.0 # MIT