diff --git a/charts/pixelfed/Chart.lock b/charts/pixelfed/Chart.lock
index 4c037e6..d3eead9 100644
--- a/charts/pixelfed/Chart.lock
+++ b/charts/pixelfed/Chart.lock
@@ -1,12 +1,12 @@
 dependencies:
 - name: postgresql
   repository: oci://registry-1.docker.io/bitnamicharts
-  version: 16.7.10
+  version: 18.0.7
 - name: valkey
   repository: oci://registry-1.docker.io/bitnamicharts
   version: 2.4.7
 - name: mariadb
   repository: oci://registry-1.docker.io/bitnamicharts
   version: 20.5.7
-digest: sha256:7147c0a1eed9bd4592b36d944385c1f787f3f9b96f72648e32f6ba39dccfd0c3
-generated: "2025-06-08T19:12:45.018640972Z"
+digest: sha256:870ee61c16aef88ca898bc5724d254a56df32af8cb6c84693687eaae025a0101
+generated: "2025-10-06T12:38:02.916570831Z"
diff --git a/charts/pixelfed/Chart.yaml b/charts/pixelfed/Chart.yaml
index 6717191..e060b06 100644
--- a/charts/pixelfed/Chart.yaml
+++ b/charts/pixelfed/Chart.yaml
@@ -15,7 +15,7 @@ type: application
 # This is 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: 0.23.0
+version: 1.0.0
 
 # This is the version number of the application being deployed.
 # renovate:image=ghcr.io/mattlqx/docker-pixelfed
@@ -28,7 +28,7 @@ maintainers:
 
 dependencies:
   - name: postgresql
-    version: 16.7.10
+    version: 18.0.7
     repository: oci://registry-1.docker.io/bitnamicharts
     condition: postgresql.enabled
 
diff --git a/charts/pixelfed/README.md b/charts/pixelfed/README.md
index 18a167a..b9d8822 100644
--- a/charts/pixelfed/README.md
+++ b/charts/pixelfed/README.md
@@ -1,6 +1,6 @@
 # Pixelfed Helm Chart
 
-![Version: 0.23.0](https://img.shields.io/badge/Version-0.23.0-informational?style=flat-square)  ![AppVersion: v0.12.4-nginx](https://img.shields.io/badge/AppVersion-v0.12.4--nginx-informational?style=flat-square)
+![Version: 1.0.0](https://img.shields.io/badge/Version-1.0.0-informational?style=flat-square)  ![AppVersion: v0.12.4-nginx](https://img.shields.io/badge/AppVersion-v0.12.4--nginx-informational?style=flat-square)
 
 A Helm chart for deploying Pixelfed on Kubernetes
 
@@ -96,7 +96,7 @@ These are all subcharts that you can choose to install, but you can also bring y
 | Repository | Name | Version |
 |------------|------|---------|
 | oci://registry-1.docker.io/bitnamicharts | mariadb | 20.5.7 |
-| oci://registry-1.docker.io/bitnamicharts | postgresql | 16.7.10 |
+| oci://registry-1.docker.io/bitnamicharts | postgresql | 18.0.7 |
 | oci://registry-1.docker.io/bitnamicharts | valkey | 2.4.7 |
 
 ### Sources for included subcharts
diff --git a/charts/pixelfed/charts/postgresql-16.7.10.tgz b/charts/pixelfed/charts/postgresql-16.7.10.tgz
deleted file mode 100644
index c345cee..0000000
Binary files a/charts/pixelfed/charts/postgresql-16.7.10.tgz and /dev/null differ
diff --git a/charts/pixelfed/charts/postgresql-18.0.7.tgz b/charts/pixelfed/charts/postgresql-18.0.7.tgz
new file mode 100644
index 0000000..7182baf
Binary files /dev/null and b/charts/pixelfed/charts/postgresql-18.0.7.tgz differ