diff --git a/chart/Chart.lock b/chart/Chart.lock
index 09a41cf..7a2ce4c 100644
--- a/chart/Chart.lock
+++ b/chart/Chart.lock
@@ -1,6 +1,6 @@
 dependencies:
 - name: postgresql
   repository: https://charts.bitnami.com/bitnami
-  version: 18.2.3
-digest: sha256:90b320ea417239191eae8a5f67a4e7c75e3d7d8ef08ed224b454998441df03bf
-generated: "2026-01-26T08:27:02.209436416Z"
+  version: 18.4.0
+digest: sha256:07b7c48f66de028ec29e0b42d9a950ac4b670dec757a6233fcacf4e6fc3fbb54
+generated: "2026-02-23T08:13:47.477841071Z"
diff --git a/chart/Chart.yaml b/chart/Chart.yaml
index 5a420f0..8b4e121 100644
--- a/chart/Chart.yaml
+++ b/chart/Chart.yaml
@@ -8,7 +8,7 @@ appVersion: "v1.5.0" # Your application version
 # Optional Dependency: Bitnami PostgreSQL chart
 dependencies:
   - name: postgresql
-    version: 18.2.3 # Specify a compatible version range (check Bitnami chart releases)
+    version: 18.4.0 # Specify a compatible version range (check Bitnami chart releases)
     repository: "https://charts.bitnami.com/bitnami" # Use OCI repository
     # condition: postgresql.enabled means this chart is only included if values.postgresql.enabled is true
     condition: postgresql.enabled
\ No newline at end of file