diff --git a/doc/requirements.txt b/doc/requirements.txt
index f6caa22..e1ac5db 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -8,7 +8,6 @@
 #
 # Requirements for docs
 mock>=2.0.0 # BSD
-mox3>=0.20.0 # Apache-2.0
 openstackdocstheme>=1.18.1 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
 sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
diff --git a/lower-constraints.txt b/lower-constraints.txt
index 823eaaf..7440dec 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -43,7 +43,6 @@ MarkupSafe==1.0
 mccabe==0.2.1
 mock==2.0.0
 monotonic==1.4
-mox3==0.20.0
 msgpack==0.5.6
 munch==2.2.0
 netaddr==0.7.19