diff --git a/charts/premium/prometheus/values.yaml b/charts/premium/prometheus/values.yaml
index f25421a5c77..a255a06e5d5 100644
--- a/charts/premium/prometheus/values.yaml
+++ b/charts/premium/prometheus/values.yaml
@@ -6,7 +6,7 @@ thanosImage:
   tag: v0.37.2@sha256:4ec6df40fdb921de162677b321057caa8fb8324c65f4cfae9568ed55c4469e2c
 alertmanagerImage:
   repository: docker.io/bitnami/alertmanager
-  tag: 0.27.0@sha256:0062fb9fb12c88ea0f2be2fc9a2ab70019a983738238d9160bbf8db7d96bc4e9
+  tag: 0.28.0@sha256:643bcefdb4dc4745ac7077278d54a80ff374e621b7287cf84dbbe6b01e0208c9
 global:
   labels: {}
 workload: