diff --git a/requirements.txt b/requirements.txt
index 38619f3a..0797fc86 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,8 +6,8 @@ pbr>=1.8 # Apache-2.0
 iso8601>=0.1.11 # MIT
 lxml!=3.7.0,>=2.3 # BSD
 oslo.config!=3.18.0,>=3.14.0 # Apache-2.0
-docutils!=0.13.1,>=0.11 # OSI-Approved Open Source, Public Domain
-sphinx!=1.3b1,<1.4,>=1.2.1 # BSD
+docutils>=0.11 # OSI-Approved Open Source, Public Domain
+sphinx>=1.5.1 # BSD
 demjson # GLGPLv3+
 PyYAML>=3.10.0 # MIT
 cliff-tablib>=1.0 # Apache-2.0