diff --git a/apps/appsets/understack.yaml b/apps/appsets/understack.yaml
index f028421a6..1adca3ca6 100644
--- a/apps/appsets/understack.yaml
+++ b/apps/appsets/understack.yaml
@@ -150,7 +150,7 @@ spec:
                   sources:
                     - repoURL: https://kubernetes.github.io/ingress-nginx
                       chart: ingress-nginx
-                      targetRevision: 4.9.1
+                      targetRevision: 4.12.1
                       helm:
                         releaseName: ingress-nginx
                         valueFiles: