diff --git a/charts/fluentd-aggregator/CHANGELOG.md b/charts/fluentd-aggregator/CHANGELOG.md
index a93c38f6..dffcf737 100644
--- a/charts/fluentd-aggregator/CHANGELOG.md
+++ b/charts/fluentd-aggregator/CHANGELOG.md
@@ -14,6 +14,12 @@
 
 ## [UNRELEASED]
 
+## [v4.9.0] - 2025-01-02
+
+### Changed
+
+- Updated _Fluentd Aggregator_ OCI image to [v2.18.0](https://github.com/stevehipwell/fluentd-aggregator/releases/tag/v2.18.0) (_Fluentd_ [v1.18.0](https://github.com/fluent/fluentd/releases/tag/v1.18.0)). ([#1100](https://github.com/stevehipwell/helm-charts/pull/1100)) _@stevehipwell_
+
 ## [v4.8.4] - 2024-11-04
 
 ### Changed
@@ -574,6 +580,7 @@ The Fluentd configuration is now much more structured to make it much harder to
 RELEASE LINKS
 -->
 [UNRELEASED]: https://github.com/stevehipwell/helm-charts/tree/main/charts/fluentd-aggregator
+[v4.9.0]: https://github.com/stevehipwell/helm-charts/releases/tag/fluentd-aggregator-4.9.0
 [v4.8.4]: https://github.com/stevehipwell/helm-charts/releases/tag/fluentd-aggregator-4.8.4
 [v4.8.3]: https://github.com/stevehipwell/helm-charts/releases/tag/fluentd-aggregator-4.8.3
 [v4.8.2]: https://github.com/stevehipwell/helm-charts/releases/tag/fluentd-aggregator-4.8.2
diff --git a/charts/fluentd-aggregator/Chart.yaml b/charts/fluentd-aggregator/Chart.yaml
index 0099fea2..cbe1cac2 100644
--- a/charts/fluentd-aggregator/Chart.yaml
+++ b/charts/fluentd-aggregator/Chart.yaml
@@ -2,8 +2,8 @@ apiVersion: v2
 name: fluentd-aggregator
 description: Helm chart for Fluentd running as an aggregation StatefulSet and using the fluent-plugin-route router.
 type: application
-version: 4.8.4
-appVersion: 2.17.4
+version: 4.9.0
+appVersion: 2.18.0
 keywords:
   - fluent
   - fluentd
@@ -22,4 +22,4 @@ annotations:
   artifacthub.io/alternativeName: fluentd
   artifacthub.io/changes: |
     - kind: changed
-      description: "Updated _Fluentd Aggregator_ OCI image to [v2.17.4](https://github.com/stevehipwell/fluentd-aggregator/releases/tag/v2.17.4) (_Fluentd_ [v1.17.1](https://github.com/fluent/fluentd/releases/tag/v1.17.1))."
+      description: "Updated _Fluentd Aggregator_ OCI image to [v2.18.0](https://github.com/stevehipwell/fluentd-aggregator/releases/tag/v2.18.0) (_Fluentd_ [v1.18.0](https://github.com/fluent/fluentd/releases/tag/v1.18.0))."
diff --git a/charts/fluentd-aggregator/README.md b/charts/fluentd-aggregator/README.md
index 7f86eadc..99acf8ec 100644
--- a/charts/fluentd-aggregator/README.md
+++ b/charts/fluentd-aggregator/README.md
@@ -1,6 +1,6 @@
 # fluentd-aggregator
 
-![Version: 4.8.4](https://img.shields.io/badge/Version-4.8.4-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 2.17.4](https://img.shields.io/badge/AppVersion-2.17.4-informational?style=flat-square)
+![Version: 4.9.0](https://img.shields.io/badge/Version-4.9.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 2.18.0](https://img.shields.io/badge/AppVersion-2.18.0-informational?style=flat-square)
 
 Helm chart for Fluentd running as an aggregation StatefulSet and using the fluent-plugin-route router.
 
@@ -25,7 +25,7 @@ Helm chart for Fluentd running as an aggregation StatefulSet and using the fluen
 To install the chart using the recommended OCI method you can use the following command.
 
 ```shell
-helm upgrade --install fluentd-aggregator oci://ghcr.io/stevehipwell/helm-charts/fluentd-aggregator --version 4.8.4
+helm upgrade --install fluentd-aggregator oci://ghcr.io/stevehipwell/helm-charts/fluentd-aggregator --version 4.9.0
 ```
 
 #### Verification
@@ -33,7 +33,7 @@ helm upgrade --install fluentd-aggregator oci://ghcr.io/stevehipwell/helm-charts
 As the OCI chart release is signed by [Cosign](https://github.com/sigstore/cosign) you can verify the chart before installing it by running the following command.
 
 ```shell
-cosign verify --certificate-oidc-issuer https://token.actions.githubusercontent.com --certificate-identity-regexp 'https://github\.com/action-stars/helm-workflows/\.github/workflows/release\.yaml@.+' --certificate-github-workflow-repository stevehipwell/helm-charts --certificate-github-workflow-name Release ghcr.io/stevehipwell/helm-charts/fluentd-aggregator:4.8.4
+cosign verify --certificate-oidc-issuer https://token.actions.githubusercontent.com --certificate-identity-regexp 'https://github\.com/action-stars/helm-workflows/\.github/workflows/release\.yaml@.+' --certificate-github-workflow-repository stevehipwell/helm-charts --certificate-github-workflow-name Release ghcr.io/stevehipwell/helm-charts/fluentd-aggregator:4.9.0
 ```
 
 ### Non-OCI Repository
@@ -42,7 +42,7 @@ Alternatively you can use the legacy non-OCI method via the following commands.
 
 ```shell
 helm repo add stevehipwell https://stevehipwell.github.io/helm-charts/
-helm upgrade --install fluentd-aggregator stevehipwell/fluentd-aggregator --version 4.8.4
+helm upgrade --install fluentd-aggregator stevehipwell/fluentd-aggregator --version 4.9.0
 ```
 
 ## Values