diff --git a/charts/mastodon/Chart.yaml b/charts/mastodon/Chart.yaml
index 542f565e829758a3cda970975333c2eadc0971af..cc0566f0934e6348aca53799289de89c1bdf1b9b 100644
--- a/charts/mastodon/Chart.yaml
+++ b/charts/mastodon/Chart.yaml
@@ -11,7 +11,7 @@ sources:
     - https://git.shivering-isles.com/shivering-isles/infrastructure-gitops/-/tree/main/charts/mastodon
 
 type: application
-version: 6.2.0
+version: 6.2.1
 # renovate: image=ghcr.io/mastodon/mastodon
 appVersion: "v4.1.7"
 
diff --git a/charts/mastodon/README.md b/charts/mastodon/README.md
index f41528d31e5c5f94b55c48e7af8834f8009de525..0df6d34a427590a282e6ccfe6377722ff483a7e5 100644
--- a/charts/mastodon/README.md
+++ b/charts/mastodon/README.md
@@ -1,6 +1,6 @@
 # mastodon
 
-![Version: 6.1.0](https://img.shields.io/badge/Version-6.1.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: v4.1.7](https://img.shields.io/badge/AppVersion-v4.1.7-informational?style=flat-square)
+![Version: 6.2.1](https://img.shields.io/badge/Version-6.2.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: v4.1.7](https://img.shields.io/badge/AppVersion-v4.1.7-informational?style=flat-square)
 
 Mastodon is a free, open-source social network server based on ActivityPub.
 
@@ -115,7 +115,13 @@ Mastodon is a free, open-source social network server based on ActivityPub.
 | postgresql.auth.password | string | `""` |  |
 | postgresql.auth.username | string | `"mastodon"` |  |
 | postgresql.enabled | bool | `true` | disable if you want to use an existing db; in which case the values below must match those of that external postgres instance |
+| redis.auth.existingSecret | string | `nil` |  |
+| redis.auth.existingSecretPasswordKey | string | `nil` |  |
 | redis.auth.password | string | `""` | you must set a password; the password generated by the redis chart will be rotated on each upgrade: |
+| redis.enabled | bool | `true` | disable if you want to use an existing redis; in which case the values below must match those of that external redis instance |
+| redis.host | string | `nil` | hostname, usually service, that provides redis |
+| redis.port | string | `"6379"` | port at which redis is available |
+| redis.redisUrl | string | `nil` | redisUrl overwrites redis.host and redis.port. It allows to use sentinal redis installations |
 | resources | object | `{}` | Default resources for all Deployments and jobs unless overwritten |
 | serviceAccount.annotations | object | `{}` | Annotations to add to the service account |
 | serviceAccount.create | bool | `true` | Specifies whether a service account should be created |