diff --git a/stable/prometheus-operator/Chart.yaml b/stable/prometheus-operator/Chart.yaml
index c6fb7225c4ae..ea46ac672130 100644
--- a/stable/prometheus-operator/Chart.yaml
+++ b/stable/prometheus-operator/Chart.yaml
@@ -12,7 +12,7 @@ sources:
   - https://github.com/coreos/kube-prometheus
   - https://github.com/coreos/prometheus-operator
   - https://coreos.com/operators/prometheus
-version: 8.14.1
+version: 8.15.0
 appVersion: 0.38.1
 tillerVersion: ">=2.12.0"
 home: https://github.com/coreos/prometheus-operator
diff --git a/stable/prometheus-operator/README.md b/stable/prometheus-operator/README.md
index 393dfa310d0c..2f902cf63565 100644
--- a/stable/prometheus-operator/README.md
+++ b/stable/prometheus-operator/README.md
@@ -430,6 +430,7 @@ The following tables list the configurable parameters of the prometheus-operator
 | `alertmanager.servicePerReplica.type` |  Alertmanager per replica Service type | `ClusterIP` |
 | `alertmanager.serviceAccount.create` | Create a `serviceAccount` for alertmanager | `true` |
 | `alertmanager.serviceAccount.name` | Name for Alertmanager service account | `""` |
+| `alertmanager.serviceAccount.annotations` | Annotations to add to the serviceaccount | `""` |
 | `alertmanager.serviceMonitor.interval` | Scrape interval. If not set, the Prometheus default scrape interval is used | `nil` |
 | `alertmanager.serviceMonitor.metricRelabelings` | The `metric_relabel_configs` for scraping the alertmanager instance. | `` |
 | `alertmanager.serviceMonitor.relabelings` | The `relabel_configs` for scraping the alertmanager instance. | `` |
diff --git a/stable/prometheus-operator/templates/alertmanager/serviceaccount.yaml b/stable/prometheus-operator/templates/alertmanager/serviceaccount.yaml
index d0fe2d61af70..1b3e55cf7408 100644
--- a/stable/prometheus-operator/templates/alertmanager/serviceaccount.yaml
+++ b/stable/prometheus-operator/templates/alertmanager/serviceaccount.yaml
@@ -7,6 +7,10 @@ metadata:
   labels:
     app: {{ template "prometheus-operator.name" . }}-alertmanager
 {{ include "prometheus-operator.labels" . | indent 4 }}
+{{- if .Values.alertmanager.serviceAccount.annotations }}
+  annotations:
+{{ toYaml .Values.alertmanager.serviceAccount.annotations | indent 4 }}
+{{- end }}
 imagePullSecrets:
 {{ toYaml .Values.global.imagePullSecrets | indent 2 }}
 {{- end }}
diff --git a/stable/prometheus-operator/values.yaml b/stable/prometheus-operator/values.yaml
index b49777415a33..6ddd48163330 100644
--- a/stable/prometheus-operator/values.yaml
+++ b/stable/prometheus-operator/values.yaml
@@ -106,6 +106,7 @@ alertmanager:
   serviceAccount:
     create: true
     name: ""
+    annotations: {}
 
   ## Configure pod disruption budgets for Alertmanager
   ## ref: https://kubernetes.io/docs/tasks/run-application/configure-pdb/#specifying-a-poddisruptionbudget