diff --git a/charts/matrix/Chart.yaml b/charts/matrix/Chart.yaml
index 619ec796..b70b4d3f 100644
--- a/charts/matrix/Chart.yaml
+++ b/charts/matrix/Chart.yaml
@@ -8,7 +8,7 @@ sources:
 
 type: application
 
-version: 19.9.0
+version: 19.9.1
 
 # renovate: image=ghcr.io/element-hq/synapse
 appVersion: v1.131.0
diff --git a/charts/matrix/README.md b/charts/matrix/README.md
index 6e81dcef..288bfbc5 100644
--- a/charts/matrix/README.md
+++ b/charts/matrix/README.md
@@ -1,6 +1,6 @@
 # matrix
 
-![Version: 19.9.0](https://img.shields.io/badge/Version-19.9.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: v1.131.0](https://img.shields.io/badge/AppVersion-v1.131.0-informational?style=flat-square)
+![Version: 19.9.1](https://img.shields.io/badge/Version-19.9.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: v1.131.0](https://img.shields.io/badge/AppVersion-v1.131.0-informational?style=flat-square)
 
 A Helm chart to deploy a Matrix homeserver stack on Kubernetes
 
diff --git a/charts/matrix/templates/element/deployment.yaml b/charts/matrix/templates/element/deployment.yaml
index f4c9a025..3a60d3d0 100644
--- a/charts/matrix/templates/element/deployment.yaml
+++ b/charts/matrix/templates/element/deployment.yaml
@@ -57,6 +57,8 @@ spec:
             - mountPath: /var/run/pid
               name: ephemeral
               subPath: pid
+            - mountPath: /tmp
+              name: ephemeral-tmp
           readinessProbe:
             httpGet:
               path: /
@@ -95,4 +97,7 @@ spec:
         # ephemeral cache, PID file, and any other temporary files nginx needs access to
         - name: ephemeral
           emptyDir: {}
+        # ephemeral cache, for /tmp
+        - name: ephemeral-tmp
+          emptyDir: {}
 {{- end }}