diff --git a/base/Chart.yaml b/base/Chart.yaml
index 6eef284..372d0f8 100644
--- a/base/Chart.yaml
+++ b/base/Chart.yaml
@@ -19,6 +19,6 @@ dependencies:
     version: 2.2.0
     repository: https://hmctspublic.azurecr.io/helm/v1/repo/
   - name: postgresql
-    version: 13.2.24
+    version: 15.2.9
     repository: https://charts.bitnami.com/bitnami
     condition: postgresql.enabled