diff --git a/contrib/helm/charts/probo/CHANGELOG.md b/contrib/helm/charts/probo/CHANGELOG.md
index f5b43cfd3..740b0a777 100644
--- a/contrib/helm/charts/probo/CHANGELOG.md
+++ b/contrib/helm/charts/probo/CHANGELOG.md
@@ -4,6 +4,16 @@ All notable changes to the Probo Helm chart will be documented in this file.
 
 ## Unreleased
 
+## [0.4.0] - 2026-06-05
+
+### Added
+
+- `SMTP_HELLO_NAME` environment variable to configure the EHLO/HELO hostname
+
+### Changed
+
+- Default `appVersion` to `probod v0.203.0`
+
 ## [0.3.0] - 2026-06-02
 
 ### Added
diff --git a/contrib/helm/charts/probo/Chart.yaml b/contrib/helm/charts/probo/Chart.yaml
index befd7dd0d..432561c6c 100644
--- a/contrib/helm/charts/probo/Chart.yaml
+++ b/contrib/helm/charts/probo/Chart.yaml
@@ -2,8 +2,8 @@ apiVersion: v2
 name: probo
 description: A Helm chart for deploying Probo - Open Source Compliance Platform
 type: application
-version: 0.3.0
-appVersion: "0.201.0"
+version: 0.4.0
+appVersion: "0.203.0"
 keywords:
   - compliance
   - soc2