diff --git a/pkg/controlplane/controller/clusterauthenticationtrust/cluster_authentication_trust_controller.go b/pkg/controlplane/controller/clusterauthenticationtrust/cluster_authentication_trust_controller.go
index 3c86b026f59..10d45d80e53 100644
--- a/pkg/controlplane/controller/clusterauthenticationtrust/cluster_authentication_trust_controller.go
+++ b/pkg/controlplane/controller/clusterauthenticationtrust/cluster_authentication_trust_controller.go
@@ -128,9 +128,6 @@ func NewClusterAuthenticationTrustController(requiredAuthenticationData ClusterA
 			AddFunc: func(obj interface{}) {
 				c.queue.Add(keyFn())
 			},
-			UpdateFunc: func(oldObj, newObj interface{}) {
-				c.queue.Add(keyFn())
-			},
 			DeleteFunc: func(obj interface{}) {
 				c.queue.Add(keyFn())
 			},