diff --git a/stable/prometheus/Chart.yaml b/stable/prometheus/Chart.yaml
old mode 100755
new mode 100644
index 274bf68b9625..2705200da4eb
--- a/stable/prometheus/Chart.yaml
+++ b/stable/prometheus/Chart.yaml
@@ -1,7 +1,7 @@
 apiVersion: v1
 name: prometheus
-version: 9.7.5
-appVersion: 2.13.1
+version: 10.0.0
+appVersion: 2.15.2
 description: Prometheus is a monitoring system and time series database.
 home: https://prometheus.io/
 icon: https://raw.githubusercontent.com/prometheus/prometheus.github.io/master/assets/prometheus_logo-cb55bb5c346.png
diff --git a/stable/prometheus/README.md b/stable/prometheus/README.md
index d7a2ef639ef8..9f84bf05b124 100644
--- a/stable/prometheus/README.md
+++ b/stable/prometheus/README.md
@@ -127,10 +127,10 @@ Parameter | Description | Default
 `alertmanager.enabled` | If true, create alertmanager | `true`
 `alertmanager.name` | alertmanager container name | `alertmanager`
 `alertmanager.image.repository` | alertmanager container image repository | `prom/alertmanager`
-`alertmanager.image.tag` | alertmanager container image tag | `v0.18.0`
+`alertmanager.image.tag` | alertmanager container image tag | `v0.20.0`
 `alertmanager.image.pullPolicy` | alertmanager container image pull policy | `IfNotPresent`
 `alertmanager.prefixURL` | The prefix slug at which the server can be accessed | ``
-`alertmanager.baseURL` | The external url at which the server can be accessed | `/`
+`alertmanager.baseURL` | The external url at which the server can be accessed | `"http://localhost:9093"`
 `alertmanager.extraArgs` | Additional alertmanager container arguments | `{}`
 `alertmanager.extraSecretMounts` | Additional alertmanager Secret mounts | `[]`
 `alertmanager.configMapOverrideName` | Prometheus alertmanager ConfigMap override where full-name is `{{.Release.Name}}-{{.Values.alertmanager.configMapOverrideName}}` and setting this value will prevent the default alertmanager ConfigMap from being generated | `""`
@@ -180,7 +180,7 @@ Parameter | Description | Default
 `alertmanagerFiles.alertmanager.yml` | Prometheus alertmanager configuration | example configuration
 `configmapReload.name` | configmap-reload container name | `configmap-reload`
 `configmapReload.image.repository` | configmap-reload container image repository | `jimmidyson/configmap-reload`
-`configmapReload.image.tag` | configmap-reload container image tag | `v0.2.2`
+`configmapReload.image.tag` | configmap-reload container image tag | `v0.3.0`
 `configmapReload.image.pullPolicy` | configmap-reload container image pull policy | `IfNotPresent`
 `configmapReload.extraArgs` | Additional configmap-reload container arguments | `{}`
 `configmapReload.extraVolumeDirs` | Additional configmap-reload volume directories | `{}`
@@ -195,7 +195,7 @@ Parameter | Description | Default
 `kubeStateMetrics.enabled` | If true, create kube-state-metrics | `true`
 `kubeStateMetrics.name` | kube-state-metrics container name | `kube-state-metrics`
 `kubeStateMetrics.image.repository` | kube-state-metrics container image repository| `quay.io/coreos/kube-state-metrics`
-`kubeStateMetrics.image.tag` | kube-state-metrics container image tag | `v1.5.0`
+`kubeStateMetrics.image.tag` | kube-state-metrics container image tag | `v1.9.0`
 `kubeStateMetrics.image.pullPolicy` | kube-state-metrics container image pull policy | `IfNotPresent`
 `kubeStateMetrics.args` | kube-state-metrics container arguments | `{}`
 `kubeStateMetrics.nodeSelector` | node labels for kube-state-metrics pod assignment | `{}`
@@ -219,7 +219,7 @@ Parameter | Description | Default
 `nodeExporter.enabled` | If true, create node-exporter | `true`
 `nodeExporter.name` | node-exporter container name | `node-exporter`
 `nodeExporter.image.repository` | node-exporter container image repository| `prom/node-exporter`
-`nodeExporter.image.tag` | node-exporter container image tag | `v0.18.0`
+`nodeExporter.image.tag` | node-exporter container image tag | `v0.18.1`
 `nodeExporter.image.pullPolicy` | node-exporter container image pull policy | `IfNotPresent`
 `nodeExporter.extraArgs` | Additional node-exporter container arguments | `{}`
 `nodeExporter.extraHostPathMounts` | Additional node-exporter hostPath mounts | `[]`
@@ -249,7 +249,7 @@ Parameter | Description | Default
 `pushgateway.enabled` | If true, create pushgateway | `true`
 `pushgateway.name` | pushgateway container name | `pushgateway`
 `pushgateway.image.repository` | pushgateway container image repository | `prom/pushgateway`
-`pushgateway.image.tag` | pushgateway container image tag | `v0.8.0`
+`pushgateway.image.tag` | pushgateway container image tag | `v1.0.1`
 `pushgateway.image.pullPolicy` | pushgateway container image pull policy | `IfNotPresent`
 `pushgateway.extraArgs` | Additional pushgateway container arguments | `{}`
 `pushgateway.ingress.enabled` | If true, pushgateway Ingress will be created | `false`
@@ -288,7 +288,7 @@ Parameter | Description | Default
 `server.enabled` | If false, Prometheus server will not be created | `true`
 `server.name` | Prometheus server container name | `server`
 `server.image.repository` | Prometheus server container image repository | `prom/prometheus`
-`server.image.tag` | Prometheus server container image tag | `v2.13.1`
+`server.image.tag` | Prometheus server container image tag | `v2.15.2`
 `server.image.pullPolicy` | Prometheus server container image pull policy | `IfNotPresent`
 `server.configPath` |  Path to a prometheus server config file on the container FS  | `/etc/config/prometheus.yml`
 `server.global.scrape_interval` | How frequently to scrape targets by default | `1m`
diff --git a/stable/prometheus/templates/alertmanager-podsecuritypolicy.yaml b/stable/prometheus/templates/alertmanager-podsecuritypolicy.yaml
old mode 100755
new mode 100644
diff --git a/stable/prometheus/templates/kube-state-metrics-podsecuritypolicy.yaml b/stable/prometheus/templates/kube-state-metrics-podsecuritypolicy.yaml
old mode 100755
new mode 100644
diff --git a/stable/prometheus/templates/pushgateway-podsecuritypolicy.yaml b/stable/prometheus/templates/pushgateway-podsecuritypolicy.yaml
old mode 100755
new mode 100644
diff --git a/stable/prometheus/templates/server-podsecuritypolicy.yaml b/stable/prometheus/templates/server-podsecuritypolicy.yaml
old mode 100755
new mode 100644
diff --git a/stable/prometheus/values.yaml b/stable/prometheus/values.yaml
index 356b69745ec2..dfe4a1321501 100644
--- a/stable/prometheus/values.yaml
+++ b/stable/prometheus/values.yaml
@@ -39,7 +39,7 @@ alertmanager:
   ##
   image:
     repository: prom/alertmanager
-    tag: v0.18.0
+    tag: v0.20.0
     pullPolicy: IfNotPresent
 
   ## alertmanager priorityClassName
@@ -56,8 +56,7 @@ alertmanager:
   prefixURL: ""
 
   ## External URL which can access alertmanager
-  ## Maybe same with Ingress host name
-  baseURL: "/"
+  baseURL: "http://localhost:9093"
 
   ## Additional alertmanager container environment variable
   ## For instance to add a http_proxy
@@ -311,7 +310,7 @@ configmapReload:
   ##
   image:
     repository: jimmidyson/configmap-reload
-    tag: v0.2.2
+    tag: v0.3.0
     pullPolicy: IfNotPresent
 
   ## Additional configmap-reload container arguments
@@ -350,7 +349,7 @@ kubeStateMetrics:
   ##
   image:
     repository: quay.io/coreos/kube-state-metrics
-    tag: v1.6.0
+    tag: v1.9.0
     pullPolicy: IfNotPresent
 
   ## kube-state-metrics priorityClassName
@@ -462,7 +461,7 @@ nodeExporter:
   ##
   image:
     repository: prom/node-exporter
-    tag: v0.18.0
+    tag: v0.18.1
     pullPolicy: IfNotPresent
 
   ## Specify if a Pod Security Policy for node-exporter must be created
@@ -584,7 +583,7 @@ server:
   ##
   image:
     repository: prom/prometheus
-    tag: v2.13.1
+    tag: v2.15.2
     pullPolicy: IfNotPresent
 
   ## prometheus server priorityClassName
@@ -952,7 +951,7 @@ pushgateway:
   ##
   image:
     repository: prom/pushgateway
-    tag: v0.8.0
+    tag: v1.0.1
     pullPolicy: IfNotPresent
 
   ## pushgateway priorityClassName