diff --git a/doc/requirements.txt b/doc/requirements.txt
index 597b54e..d959d44 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -3,4 +3,4 @@
 # process, which may cause wedges in the gate later.
 openstackdocstheme>=1.18.1 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
-sphinx!=1.6.6,>=1.6.2 # BSD
+sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
diff --git a/test-requirements.txt b/test-requirements.txt
index 6a3828e..095c3e3 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -6,6 +6,6 @@ mock>=2.0.0 # BSD
 coverage!=4.4,>=4.0 # Apache-2.0
 testrepository>=0.0.18 # Apache-2.0/BSD
 # sphinx is needed for testing the sphinxext module
-sphinx!=1.6.6,>=1.6.2 # BSD
+sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
 # Bandit security code scanner
 bandit>=1.1.0 # Apache-2.0