diff --git a/matrix-synapse/Chart.lock b/matrix-synapse/Chart.lock
index 72aca1a..d7dc37a 100644
--- a/matrix-synapse/Chart.lock
+++ b/matrix-synapse/Chart.lock
@@ -1,9 +1,9 @@
 dependencies:
 - name: postgresql
   repository: oci://docker.io/bitnamicharts
-  version: 16.3.4
+  version: 16.4.3
 - name: redis
   repository: oci://docker.io/bitnamicharts
-  version: 20.6.1
-digest: sha256:665df7526ab6a366a2d588fd0269eafb28b8b798e16e2df0c61b43095aa97219
-generated: "2024-12-23T12:06:19.941471462+01:00"
+  version: 20.6.3
+digest: sha256:dd37b0663f93a21ea0d23e5041b48efef3cef63a051f2942eb095d1b95e63d7d
+generated: "2025-01-15T22:06:14.404148475+01:00"
diff --git a/matrix-synapse/Chart.yaml b/matrix-synapse/Chart.yaml
index 927b794..c6c09a3 100644
--- a/matrix-synapse/Chart.yaml
+++ b/matrix-synapse/Chart.yaml
@@ -4,7 +4,7 @@ name: matrix-synapse
 description: Matrix reference homeserver
 icon: https://matrix.org/images/matrix-logo.svg
 type: application
-version: "1.0.8"
+version: "1.0.9"
 # renovate: image=ghcr.io/element-hq/synapse
 appVersion: 1.121.1
 maintainers:
@@ -17,6 +17,6 @@ dependencies:
     repository: "oci://docker.io/bitnamicharts"
     condition: postgresql.enabled
   - name: redis
-    version: "20.6.1"
+    version: "20.6.3"
     repository: "oci://docker.io/bitnamicharts"
     condition: redis.enabled
diff --git a/matrix-synapse/README.md b/matrix-synapse/README.md
index fa040f3..467866e 100644
--- a/matrix-synapse/README.md
+++ b/matrix-synapse/README.md
@@ -7,7 +7,7 @@ description: "Matrix reference homeserver"
 
 # matrix-synapse
 
-![Version: 1.0.8](https://img.shields.io/badge/Version-1.0.8-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 1.121.1](https://img.shields.io/badge/AppVersion-1.121.1-informational?style=flat-square)
+![Version: 1.0.9](https://img.shields.io/badge/Version-1.0.9-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 1.121.1](https://img.shields.io/badge/AppVersion-1.121.1-informational?style=flat-square)
 
 Matrix reference homeserver
 
@@ -44,7 +44,7 @@ helm uninstall matrix-synapse-release
 | Repository | Name | Version |
 |------------|------|---------|
 | oci://docker.io/bitnamicharts | postgresql | ^16.3.1 |
-| oci://docker.io/bitnamicharts | redis | 20.6.1 |
+| oci://docker.io/bitnamicharts | redis | 20.6.3 |
 
 ## Values
 
@@ -154,7 +154,7 @@ helm uninstall matrix-synapse-release
 | volumePermissions.image.pullPolicy | string | `"Always"` |  |
 | volumePermissions.image.registry | string | `"docker.io"` |  |
 | volumePermissions.image.repository | string | `"library/alpine"` |  |
-| volumePermissions.image.tag | string | `"3.21.1"` |  |
+| volumePermissions.image.tag | string | `"3.21.2"` |  |
 | volumePermissions.resources | object | `{}` |  |
 | volumePermissions.uid | int | `666` |  |
 | wellknown.affinity | object | `{}` |  |
diff --git a/matrix-synapse/values.yaml b/matrix-synapse/values.yaml
index 3661bab..aaa0837 100644
--- a/matrix-synapse/values.yaml
+++ b/matrix-synapse/values.yaml
@@ -794,7 +794,7 @@ volumePermissions:
   image:
     registry: docker.io
     repository: library/alpine
-    tag: 3.21.1
+    tag: 3.21.2
     pullPolicy: Always
 
     ## Optionally specify an array of imagePullSecrets.