diff --git a/test-requirements.txt b/test-requirements.txt
index 3617c35..9eacb76 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -4,7 +4,7 @@
 hacking<0.11,>=0.10.0
 
 
-sphinx!=1.3b1,<1.4,>=1.2.1 # BSD
+sphinx>=1.5.1 # BSD
 oslosphinx>=4.7.0 # Apache-2.0
 
 mock>=2.0 # BSD