diff --git a/stable/oauth2-proxy/Chart.yaml b/stable/oauth2-proxy/Chart.yaml
index a80350a94e..c1765d5d7d 100644
--- a/stable/oauth2-proxy/Chart.yaml
+++ b/stable/oauth2-proxy/Chart.yaml
@@ -1,7 +1,7 @@
 name: oauth2-proxy
-version: 0.15.0
+version: 1.0.0
 apiVersion: v1
-appVersion: 3.2.0
+appVersion: 4.0.0
 home: http://www.videntity.com/
 description: A reverse proxy that provides authentication with Google, Github or other providers
 keywords:
@@ -12,6 +12,8 @@ keywords:
 - google
 - github
 maintainers:
+  - name: desaintmartin
+    email: cedric.dsm@gmail.com
   - name: miouge1
     email: maxime@root314.com
 sources:
diff --git a/stable/oauth2-proxy/OWNERS b/stable/oauth2-proxy/OWNERS
index 48b09f34c5..b07c528fcd 100644
--- a/stable/oauth2-proxy/OWNERS
+++ b/stable/oauth2-proxy/OWNERS
@@ -1,4 +1,6 @@
 approvers:
+- desaintmartin
 - miouge1
 reviewers:
+- desaintmartin
 - miouge1
diff --git a/stable/oauth2-proxy/README.md b/stable/oauth2-proxy/README.md
index 661266bfa2..9f9fbe7d93 100644
--- a/stable/oauth2-proxy/README.md
+++ b/stable/oauth2-proxy/README.md
@@ -32,6 +32,15 @@ $ helm delete my-release
 
 The command removes all the Kubernetes components associated with the chart and deletes the release.
 
+## Upgrading an existing Release to a new major version
+
+A major chart version change (like v1.2.3 -> v2.0.0) indicates that there is an
+incompatible breaking change needing manual actions.
+
+### To 1.0.0
+
+This version upgrade oauth2-proxy to v4.0.0. Please see the [changelog](https://github.com/pusher/oauth2_proxy/blob/v4.0.0/CHANGELOG.md#v400) in order to upgrade.
+
 ## Configuration
 
 The following table lists the configurable parameters of the oauth2-proxy chart and their default values.
@@ -60,7 +69,7 @@ Parameter | Description | Default
 `htpasswdFile.existingSecret` | existing Kubernetes secret to use for OAuth2 htpasswd file | `""`
 `image.pullPolicy` | Image pull policy | `IfNotPresent`
 `image.repository` | Image repository | `quay.io/pusher/oauth2_proxy`
-`image.tag` | Image tag | `v3.2.0`
+`image.tag` | Image tag | `v4.0.0`
 `imagePullSecrets` | Specify image pull secrets | `nil` (does not add image pull secrets to deployed pods)
 `ingress.enabled` | Enable Ingress | `false`
 `ingress.path` | Ingress accepted path | `/`
diff --git a/stable/oauth2-proxy/values.yaml b/stable/oauth2-proxy/values.yaml
index 9b5b86d680..a69377a8f3 100644
--- a/stable/oauth2-proxy/values.yaml
+++ b/stable/oauth2-proxy/values.yaml
@@ -30,7 +30,7 @@ config:
 
 image:
   repository: "quay.io/pusher/oauth2_proxy"
-  tag: "v3.2.0"
+  tag: "v4.0.0"
   pullPolicy: "IfNotPresent"
 
 # Optionally specify an array of imagePullSecrets.