diff --git a/charts/enterprise/prometheus/Chart.yaml b/charts/enterprise/prometheus/Chart.yaml
index 1700a6537c3..ebeb85de8b9 100644
--- a/charts/enterprise/prometheus/Chart.yaml
+++ b/charts/enterprise/prometheus/Chart.yaml
@@ -50,4 +50,4 @@ sources:
   - https://hub.docker.com/r/bitnami/alertmanager
   - https://hub.docker.com/r/bitnami/prometheus
 type: application
-version: 16.5.2
+version: 16.5.3
diff --git a/charts/enterprise/prometheus/values.yaml b/charts/enterprise/prometheus/values.yaml
index 60802cf2d08..50eedf81b7e 100644
--- a/charts/enterprise/prometheus/values.yaml
+++ b/charts/enterprise/prometheus/values.yaml
@@ -6,7 +6,7 @@ thanosImage:
   tag: v0.34.1@sha256:567346c3f6ff2927c2c6c0daad977b2213f62d45eca54d48afd19e6deb902181
 alertmanagerImage:
   repository: bitnami/alertmanager
-  tag: 0.26.0@sha256:537c5f5b35feda7b78899ce196f3b1fbc637677b8345c0f8817384a377e7a282
+  tag: 0.26.0@sha256:5779c22b78afa1dec3a2f0285ccb1d7077f60b42482cde06a4fe62b539c7229c
 global:
   labels: {}
 workload: