diff --git a/deploy/postgres/postgres-app.yaml b/deploy/postgres/postgres-app.yaml
index 627c073..54dccab 100644
--- a/deploy/postgres/postgres-app.yaml
+++ b/deploy/postgres/postgres-app.yaml
@@ -8,7 +8,7 @@ spec:
   source:
     repoURL: "https://charts.bitnami.com/bitnami"
     chart: postgresql
-    targetRevision: 16.5.0
+    targetRevision: 17.4.0
     helm:
       valueFiles:
       - values.yaml