diff --git a/lower-constraints.txt b/lower-constraints.txt
index 37d635bda4..ab23ca771b 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -38,7 +38,6 @@ keystoneauth1==3.4.0
 linecache2==1.0.0
 MarkupSafe==1.1.0
 monotonic==1.4
-mox3==0.25.0
 msgpack==0.5.6
 munch==2.2.0
 netaddr==0.7.18