diff --git a/test-requirements.txt b/test-requirements.txt
index 093e80d746..88922ef663 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -20,7 +20,7 @@ bashate>=0.5.1 # Apache-2.0
 flake8-import-order>=0.13 # LGPLv3
 
 # Doc requirements
-sphinx!=1.6.6,<1.7.0,>=1.6.2 # BSD
+sphinx!=1.6.6,>=1.6.2 # BSD
 sphinxcontrib-pecanwsme>=0.8.0 # Apache-2.0
 sphinxcontrib-seqdiag>=0.8.4 # BSD
 openstackdocstheme>=1.18.1 # Apache-2.0