diff --git a/charts/matrix-authentication-service/Chart.lock b/charts/matrix-authentication-service/Chart.lock
index df8e5a5..5eb71c7 100644
--- a/charts/matrix-authentication-service/Chart.lock
+++ b/charts/matrix-authentication-service/Chart.lock
@@ -1,6 +1,6 @@
 dependencies:
 - name: postgresql
   repository: oci://registry-1.docker.io/bitnamicharts
-  version: 16.6.0
-digest: sha256:544b3620aad644ebc4cf5bf2637307dea2f4979943a25bb5f4d1fbf4e8bbd32e
-generated: "2025-03-31T08:32:29.663006505Z"
+  version: 16.6.1
+digest: sha256:0b7677d880b3081e354485a421fd1ffe4fff06e54caa7d2f0d0c4991ab78827d
+generated: "2025-04-07T08:32:13.795944217Z"
diff --git a/charts/matrix-authentication-service/Chart.yaml b/charts/matrix-authentication-service/Chart.yaml
index 8a9c0ae..9e38f66 100644
--- a/charts/matrix-authentication-service/Chart.yaml
+++ b/charts/matrix-authentication-service/Chart.yaml
@@ -15,7 +15,7 @@ type: application
 # The chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 1.5.0
+version: 1.5.1
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
@@ -29,7 +29,7 @@ appVersion: 0.15.0
 
 dependencies:
   - name: postgresql
-    version: 16.6.0
+    version: 16.6.1
     repository: oci://registry-1.docker.io/bitnamicharts
     condition: postgresql.enabled
 
diff --git a/charts/matrix-authentication-service/README.md b/charts/matrix-authentication-service/README.md
index 58e396c..2151f0a 100644
--- a/charts/matrix-authentication-service/README.md
+++ b/charts/matrix-authentication-service/README.md
@@ -1,6 +1,6 @@
 # matrix-authentication-service
 
-![Version: 1.5.0](https://img.shields.io/badge/Version-1.5.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 0.15.0](https://img.shields.io/badge/AppVersion-0.15.0-informational?style=flat-square)
+![Version: 1.5.1](https://img.shields.io/badge/Version-1.5.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 0.15.0](https://img.shields.io/badge/AppVersion-0.15.0-informational?style=flat-square)
 
 A Helm chart for deploying the matrix authentication service on Kubernetes
 
@@ -14,7 +14,7 @@ A Helm chart for deploying the matrix authentication service on Kubernetes
 
 | Repository | Name | Version |
 |------------|------|---------|
-| oci://registry-1.docker.io/bitnamicharts | postgresql | 16.6.0 |
+| oci://registry-1.docker.io/bitnamicharts | postgresql | 16.6.1 |
 
 ## Values
 
diff --git a/charts/matrix-authentication-service/charts/postgresql-16.6.0.tgz b/charts/matrix-authentication-service/charts/postgresql-16.6.0.tgz
deleted file mode 100644
index 865acad..0000000
Binary files a/charts/matrix-authentication-service/charts/postgresql-16.6.0.tgz and /dev/null differ
diff --git a/charts/matrix-authentication-service/charts/postgresql-16.6.1.tgz b/charts/matrix-authentication-service/charts/postgresql-16.6.1.tgz
new file mode 100644
index 0000000..b1b3d0a
Binary files /dev/null and b/charts/matrix-authentication-service/charts/postgresql-16.6.1.tgz differ