diff --git a/test-requirements.txt b/test-requirements.txt
index 53b4a46..97ea644 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -9,7 +9,7 @@ ordereddict # MIT
 os-client-config>=1.27.0 # Apache-2.0
 oslosphinx>=4.7.0 # Apache-2.0
 reno!=2.3.1,>=1.8.0 # Apache-2.0
-sphinx!=1.6.1,>=1.5.1 # BSD
+sphinx>=1.6.2 # BSD
 testrepository>=0.0.18 # Apache-2.0/BSD
 testtools>=1.4.0 # MIT
 testscenarios>=0.4 # Apache-2.0/BSD