diff --git a/charts/matrix/Chart.yaml b/charts/matrix/Chart.yaml
index f802a1ba..6eda5da5 100644
--- a/charts/matrix/Chart.yaml
+++ b/charts/matrix/Chart.yaml
@@ -8,7 +8,7 @@ sources:
 
 type: application
 
-version: 21.3.0
+version: 21.3.1
 
 # renovate: image=ghcr.io/element-hq/synapse
 appVersion: v1.142.1
diff --git a/charts/matrix/README.md b/charts/matrix/README.md
index 288842e5..ecaf8cc3 100644
--- a/charts/matrix/README.md
+++ b/charts/matrix/README.md
@@ -1,6 +1,6 @@
 # matrix
 
-![Version: 21.3.0](https://img.shields.io/badge/Version-21.3.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: v1.142.1](https://img.shields.io/badge/AppVersion-v1.142.1-informational?style=flat-square)
+![Version: 21.3.1](https://img.shields.io/badge/Version-21.3.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: v1.142.1](https://img.shields.io/badge/AppVersion-v1.142.1-informational?style=flat-square)
 
 A Helm chart to deploy a Matrix homeserver stack on Kubernetes
 
@@ -842,4 +842,4 @@ A Helm chart to deploy a Matrix homeserver stack on Kubernetes
 | volumes.synapseConfig.storageClass | string | `""` | Storage class (optional) |
 
 ----------------------------------------------
-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 v1.14.2](https://github.com/norwoodj/helm-docs/releases/v1.14.2)
diff --git a/charts/matrix/templates/synapse/deployment.yaml b/charts/matrix/templates/synapse/deployment.yaml
index 5949da32..abc76e13 100644
--- a/charts/matrix/templates/synapse/deployment.yaml
+++ b/charts/matrix/templates/synapse/deployment.yaml
@@ -400,7 +400,7 @@ spec:
             {{- end }}
             {{- if .Values.s3.enabled }}
             - name: PYTHONPATH
-              value: "/usr/local/lib/python3.11/site-packages:/data/extra_pip_packages/lib/python3.11/site-packages"
+              value: "/usr/local/lib/python3.13/site-packages:/data/extra_pip_packages/lib/python3.13/site-packages"
             {{- end }}
             {{- if .Values.synapse.extraEnv }}
             {{- toYaml .Values.synapse.extraEnv | nindent 12 }}