diff --git a/charts/mastodon/Chart.lock b/charts/mastodon/Chart.lock
index 555b6f8b636e123924353247fadbc38125014a16..4a479adb73cd954ccbfb18da9352541d0f9e50df 100644
--- a/charts/mastodon/Chart.lock
+++ b/charts/mastodon/Chart.lock
@@ -4,6 +4,6 @@ dependencies:
   version: 13.2.21
 - name: redis
   repository: https://raw.githubusercontent.com/bitnami/charts/archive-full-index/bitnami
-  version: 18.4.0
-digest: sha256:3ce31417fe6ff6d21a07c2bfd93276347f93258ef6c5136fa708371d216582e5
-generated: "2023-11-28T22:46:19.863770512Z"
+  version: 18.6.2
+digest: sha256:40ba28e6600cef8c801da8dd9b40c14d8fb062437ebfebff5b8b6e5e8cc43371
+generated: "2024-01-10T00:29:49.834202845Z"
diff --git a/charts/mastodon/Chart.yaml b/charts/mastodon/Chart.yaml
index ac563515fcb39a14b7cf9fb1cbae8a50be8db485..b6b1312f06c970a68ba6b82b0ac2215e9cb5887e 100644
--- a/charts/mastodon/Chart.yaml
+++ b/charts/mastodon/Chart.yaml
@@ -17,7 +17,7 @@ annotations:
     - name: support
       url: https://matrix.to/#/#mastodon-on-kubernetes:shivering-isles.com
 type: application
-version: 9.0.1
+version: 9.0.2
 kubeVersion: ">= 1.23"
 # renovate: image=ghcr.io/mastodon/mastodon
 appVersion: "v4.2.3"
@@ -28,6 +28,6 @@ dependencies:
     repository: https://raw.githubusercontent.com/bitnami/charts/archive-full-index/bitnami
     condition: postgresql.enabled
   - name: redis
-    version: 18.4.0
+    version: 18.6.2
     repository: https://raw.githubusercontent.com/bitnami/charts/archive-full-index/bitnami
     condition: redis.enabled
diff --git a/charts/mastodon/README.md b/charts/mastodon/README.md
index f29ffbe2269a7df16d0ac5b2a019536957eb5344..829630a69ebbb1aa220a5246cbde092e1d463d26 100644
--- a/charts/mastodon/README.md
+++ b/charts/mastodon/README.md
@@ -1,6 +1,6 @@
 # mastodon
 
-![Version: 9.0.1](https://img.shields.io/badge/Version-9.0.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: v4.2.3](https://img.shields.io/badge/AppVersion-v4.2.3-informational?style=flat-square)
+![Version: 9.0.2](https://img.shields.io/badge/Version-9.0.2-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: v4.2.3](https://img.shields.io/badge/AppVersion-v4.2.3-informational?style=flat-square)
 
 Mastodon is a free, open-source social network server based on ActivityPub.
 
@@ -20,7 +20,7 @@ Kubernetes: `>= 1.23`
 | Repository | Name | Version |
 |------------|------|---------|
 | https://raw.githubusercontent.com/bitnami/charts/archive-full-index/bitnami | postgresql | 13.2.21 |
-| https://raw.githubusercontent.com/bitnami/charts/archive-full-index/bitnami | redis | 18.4.0 |
+| https://raw.githubusercontent.com/bitnami/charts/archive-full-index/bitnami | redis | 18.6.2 |
 
 ## Values
 
@@ -134,4 +134,4 @@ Kubernetes: `>= 1.23`
 | serviceAccount.name | string | `""` | The name of the service account to use. If not set and create is true, a name is generated using the fullname template |
 
 ----------------------------------------------
-Autogenerated from chart metadata using [helm-docs v1.11.0](https://github.com/norwoodj/helm-docs/releases/v1.11.0)
+Autogenerated from chart metadata using [helm-docs v1.12.0](https://github.com/norwoodj/helm-docs/releases/v1.12.0)
diff --git a/charts/mastodon/charts/redis-18.4.0.tgz b/charts/mastodon/charts/redis-18.4.0.tgz
deleted file mode 100644
index 991cded4b2d1cec7b5004703f76b9117087eb54a..0000000000000000000000000000000000000000
Binary files a/charts/mastodon/charts/redis-18.4.0.tgz and /dev/null differ
diff --git a/charts/mastodon/charts/redis-18.6.2.tgz b/charts/mastodon/charts/redis-18.6.2.tgz
new file mode 100644
index 0000000000000000000000000000000000000000..f6f421d9c887fe9a52943976b6b6fe2386512221
Binary files /dev/null and b/charts/mastodon/charts/redis-18.6.2.tgz differ