diff --git a/chart/Chart.lock b/chart/Chart.lock
index 09a41cf..8b908ad 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: 18.5.6
+digest: sha256:15eb9ab8fa1b8df15d424dc3ab70db86a95d4ab123109827f78cf60e3c59ad72
+generated: "2026-03-16T08:11:20.662875227Z"
diff --git a/chart/Chart.yaml b/chart/Chart.yaml
index 5a420f0..ed4399f 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: 18.5.6 # 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