diff --git a/charts/postgres/Chart.yaml b/charts/postgres/Chart.yaml
index 0627e5544d806c888d0581c6bd322b567f4f7c5a..6e3c1ef687ba8d9d28148a529b6b5187b1f9ed6b 100644
--- a/charts/postgres/Chart.yaml
+++ b/charts/postgres/Chart.yaml
@@ -7,6 +7,6 @@ type: application
 maintainers:
   - name: groundhog2k
 
-version: 0.2.13
+version: 0.3.0
 
-appVersion: "13.4"
+appVersion: "14.0"
diff --git a/charts/postgres/README.md b/charts/postgres/README.md
index c4457e19b296d364c1d00afdf48b76dae3536a70..c3e0446f3880717cc3a34f0d62c6798e05e81fb3 100644
--- a/charts/postgres/README.md
+++ b/charts/postgres/README.md
@@ -1,9 +1,13 @@
 # PostgreSQL
 
-![Version: 0.2.13](https://img.shields.io/badge/Version-0.2.13-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 13.4](https://img.shields.io/badge/AppVersion-13.4-informational?style=flat-square)
+![Version: 0.3.0](https://img.shields.io/badge/Version-0.3.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 14.0](https://img.shields.io/badge/AppVersion-14.0-informational?style=flat-square)
 
 A Helm chart for PostgreSQL on Kubernetes
 
+## ⚠️ Warning
+
+There is no automatic database upgrade from PostgreSQL 13.x (Chart version 0.2.x) to PostgreSQL 14.x (Chart version 0.3.x) and deployment will fail when database is PostgreSQL 13.x.
+
 ## TL;DR
 
 ```bash