diff --git a/charts/enterprise/prometheus/Chart.yaml b/charts/enterprise/prometheus/Chart.yaml
index 8b3df16fcd2..b28d5944972 100644
--- a/charts/enterprise/prometheus/Chart.yaml
+++ b/charts/enterprise/prometheus/Chart.yaml
@@ -47,7 +47,7 @@ sources:
   - https://github.com/prometheus-operator/kube-prometheus
   - https://github.com/truecharts/charts/tree/master/charts/enterprise/prometheus
   - https://quay.io/thanos/thanos
-  - https://hub.docker.com/r/bitnami/alertmanager
   - https://hub.docker.com/r/bitnami/prometheus
+  - https://hub.docker.com/r/bitnami/alertmanager
 type: application
-version: 16.4.7
+version: 16.4.8
diff --git a/charts/enterprise/prometheus/values.yaml b/charts/enterprise/prometheus/values.yaml
index ced694a98be..1a4031d5866 100644
--- a/charts/enterprise/prometheus/values.yaml
+++ b/charts/enterprise/prometheus/values.yaml
@@ -6,7 +6,7 @@ thanosImage:
   tag: v0.34.0@sha256:2356a5f131fd80965d7a0617b70b14e4facae1aee5ec43f117f8bfbe20d987fc
 alertmanagerImage:
   repository: bitnami/alertmanager
-  tag: 0.26.0@sha256:130b6ff598e4c6975ace7c10c1913d797d39e7ab86c4a0cdb5a72802122b2bb2
+  tag: 0.26.0@sha256:537c5f5b35feda7b78899ce196f3b1fbc637677b8345c0f8817384a377e7a282
 global:
   labels: {}
 workload: