diff --git a/charts/postgres-cluster/Chart.yaml b/charts/postgres-cluster/Chart.yaml
index 0dad774..62f068c 100644
--- a/charts/postgres-cluster/Chart.yaml
+++ b/charts/postgres-cluster/Chart.yaml
@@ -1,6 +1,6 @@
 apiVersion: v2
 name: postgres-cluster
-version: 3.8.4
+version: 3.9.0
 description: Chart for cloudnative-pg cluster
 keywords:
   - database
@@ -10,4 +10,4 @@ sources:
 maintainers:
   - name: alexlebens
 icon: https://avatars.githubusercontent.com/u/100373852?s=48&v=4
-appVersion: v1.23.1
+appVersion: v1.23.3
diff --git a/charts/postgres-cluster/values.yaml b/charts/postgres-cluster/values.yaml
index 1c9b741..01e4906 100644
--- a/charts/postgres-cluster/values.yaml
+++ b/charts/postgres-cluster/values.yaml
@@ -20,7 +20,7 @@ cluster:
 
   image:
     repository: ghcr.io/cloudnative-pg/postgresql
-    tag: "16.3"
+    tag: "16.4"
     pullPolicy: IfNotPresent
 
   # The UID and GID of the postgres user inside the image