diff --git a/charts/matrix/Chart.lock b/charts/matrix/Chart.lock
index 53600477..a0485e76 100644
--- a/charts/matrix/Chart.lock
+++ b/charts/matrix/Chart.lock
@@ -1,12 +1,12 @@
 dependencies:
 - name: postgresql
   repository: oci://registry-1.docker.io/bitnamicharts
-  version: 16.3.1
+  version: 16.4.3
 - name: coturn
   repository: https://small-hack.github.io/coturn-chart
   version: 7.1.0
 - name: matrix-authentication-service
   repository: https://small-hack.github.io/matrix-authentication-service-chart
   version: 1.3.1
-digest: sha256:6b0142f382eb3594972bb20f9b355bcc3ae1469b394577691a9724fbd4157e9e
-generated: "2025-01-19T15:10:37.052774754Z"
+digest: sha256:1ecfdd1095066ca8c0e55c50f337206186d5901a19d8d95da1d29ac236893861
+generated: "2025-01-19T16:11:34.5963255Z"
diff --git a/charts/matrix/Chart.yaml b/charts/matrix/Chart.yaml
index 81016d63..973c93e4 100644
--- a/charts/matrix/Chart.yaml
+++ b/charts/matrix/Chart.yaml
@@ -8,7 +8,7 @@ sources:
 
 type: application
 
-version: 18.4.0
+version: 18.5.0
 
 # renovate: image=ghcr.io/element-hq/synapse
 appVersion: v1.122.0
@@ -19,7 +19,7 @@ maintainers:
 
 dependencies:
   - name: postgresql
-    version: 16.3.1
+    version: 16.4.3
     repository: oci://registry-1.docker.io/bitnamicharts
     condition: postgresql.enabled
 
diff --git a/charts/matrix/README.md b/charts/matrix/README.md
index 07cb9268..c078ae73 100644
--- a/charts/matrix/README.md
+++ b/charts/matrix/README.md
@@ -1,6 +1,6 @@
 # matrix
 
-![Version: 18.4.0](https://img.shields.io/badge/Version-18.4.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: v1.122.0](https://img.shields.io/badge/AppVersion-v1.122.0-informational?style=flat-square)
+![Version: 18.5.0](https://img.shields.io/badge/Version-18.5.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: v1.122.0](https://img.shields.io/badge/AppVersion-v1.122.0-informational?style=flat-square)
 
 A Helm chart to deploy a Matrix homeserver stack on Kubernetes
 
@@ -22,7 +22,7 @@ A Helm chart to deploy a Matrix homeserver stack on Kubernetes
 |------------|------|---------|
 | https://small-hack.github.io/coturn-chart | coturn | 7.1.0 |
 | https://small-hack.github.io/matrix-authentication-service-chart | mas(matrix-authentication-service) | 1.3.1 |
-| oci://registry-1.docker.io/bitnamicharts | postgresql | 16.3.1 |
+| oci://registry-1.docker.io/bitnamicharts | postgresql | 16.4.3 |
 
 ## Values
 
diff --git a/charts/matrix/charts/postgresql-16.3.1.tgz b/charts/matrix/charts/postgresql-16.3.1.tgz
deleted file mode 100644
index 61bd66e7..00000000
Binary files a/charts/matrix/charts/postgresql-16.3.1.tgz and /dev/null differ
diff --git a/charts/matrix/charts/postgresql-16.4.3.tgz b/charts/matrix/charts/postgresql-16.4.3.tgz
new file mode 100644
index 00000000..429f7ed0
Binary files /dev/null and b/charts/matrix/charts/postgresql-16.4.3.tgz differ