diff --git a/test-requirements.txt b/test-requirements.txt
index 1fa883c8..c0c35e15 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -17,7 +17,7 @@ oslotest>=1.10.0 # Apache-2.0
 coverage>=3.6 # Apache-2.0
 
 # this is required for the docs build jobs
-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
 
 # mocking framework