diff --git a/k8s/helm/Chart.lock b/k8s/helm/Chart.lock
index a7ae219..597c1d0 100644
--- a/k8s/helm/Chart.lock
+++ b/k8s/helm/Chart.lock
@@ -1,6 +1,6 @@
 dependencies:
 - name: postgresql
   repository: https://charts.bitnami.com/bitnami
-  version: 15.5.4
-digest: sha256:79fc845519bbb6853e6113e26de235f73302616a0612637ed0b511dfb6f5cb09
-generated: "2024-06-08T22:19:27.362513+08:00"
+  version: 15.4.2
+digest: sha256:57308af2821726255fe0c52374260c2ea98f9091c03d82cf82b9c6d499e6f214
+generated: "2024-06-09T14:04:36.881437+08:00"
diff --git a/k8s/helm/Chart.yaml b/k8s/helm/Chart.yaml
index a8b4b40..9e8ea98 100644
--- a/k8s/helm/Chart.yaml
+++ b/k8s/helm/Chart.yaml
@@ -37,6 +37,6 @@ sources:
 
 dependencies:
   - name: postgresql
-    version: 15.5.4
+    version: 15.4.2
     repository: "https://charts.bitnami.com/bitnami"
     condition: postgresql.enabled