diff --git a/upper-constraints.txt b/upper-constraints.txt
index 6ce1e87605..524d64c5a3 100644
--- a/upper-constraints.txt
+++ b/upper-constraints.txt
@@ -122,7 +122,7 @@ responses===0.25.0
 croniter===2.0.1
 horizon===23.4.0
 octavia-lib===3.5.0
-python-watcherclient===4.2.0
+python-watcherclient===4.3.0
 MarkupSafe===2.1.5
 types-python-dateutil===2.8.19.20240106
 ruamel.yaml.clib===0.2.8