diff --git a/lower-constraints.txt b/lower-constraints.txt
index 3b7fcf8531..e91ddc00de 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -36,7 +36,6 @@ linecache2==1.0.0
 MarkupSafe==1.0
 mccabe==0.2.1
 monotonic==1.4
-mox3==0.25.0
 msgpack==0.5.6
 munch==2.2.0
 netifaces==0.10.6