diff --git a/doc/requirements.txt b/doc/requirements.txt
index 5f0bf6a..99f7e90 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,3 +1,3 @@
-sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
+sphinx>=1.7.0 # BSD
 openstackdocstheme>=1.31.2 # Apache-2.0
 reno>=2.5.0 # Apache-2.0