diff --git a/lower-constraints.txt b/lower-constraints.txt
index db242f237..e40d62af3 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -55,7 +55,6 @@ mccabe==0.2.1
 microversion_parse==0.2.1
 mock==2.0.0
 monotonic==1.4
-mox3==0.25.0
 msgpack==0.5.6
 munch==2.2.0
 netaddr==0.7.19