diff --git a/docs/samples/metrics-and-monitoring/prometheus-operator/kustomization.yaml b/docs/samples/metrics-and-monitoring/prometheus-operator/kustomization.yaml
index 36d1df99cd1..2633659669b 100644
--- a/docs/samples/metrics-and-monitoring/prometheus-operator/kustomization.yaml
+++ b/docs/samples/metrics-and-monitoring/prometheus-operator/kustomization.yaml
@@ -1,5 +1,5 @@
 namePrefix: kfserving-
 namespace: kfserving-monitoring
 resources:
-- github.com/prometheus-operator/prometheus-operator?ref=v0.44.1
+- github.com/prometheus-operator/prometheus-operator?ref=v0.78.1
 - namespace.yaml
\ No newline at end of file