diff --git a/CHANGELOG.md b/CHANGELOG.md
index f07df245..8435945c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,11 +5,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
 ## v1.3.51 (2023-11-02)
 
 ### Fixed
 
 - Postpone Legacy AlertManager and Grafana Alerting integration auto-migration date ([3250])(<https://github.com/grafana/oncall/pull/3250>)
+- Address `TypeError` that occurs under some scenarios on the Alert Group detail page ([3252](https://github.com/grafana/oncall/pull/3252))
 
 ## v1.3.50 (2023-11-02)
 
diff --git a/grafana-plugin/src/pages/incident/Incident.tsx b/grafana-plugin/src/pages/incident/Incident.tsx
index cf50e337..4fe3f230 100644
--- a/grafana-plugin/src/pages/incident/Incident.tsx
+++ b/grafana-plugin/src/pages/incident/Incident.tsx
@@ -177,7 +177,7 @@ class IncidentPage extends React.Component<IncidentPageProps, IncidentPageState>
                   </div>
                   <div className={cx('column')}>
                     <VerticalGroup style={{ display: 'block' }}>
-                      {(!incident.resolved || incident.paged_users.length > 0) && (
+                      {(!incident.resolved || incident?.paged_users.length > 0) && (
                         <AddResponders
                           mode="update"
                           hideAddResponderButton={incident.resolved}
diff --git a/helm/oncall/Chart.yaml b/helm/oncall/Chart.yaml
index 776cf928..ed4d6ec6 100644
--- a/helm/oncall/Chart.yaml
+++ b/helm/oncall/Chart.yaml
@@ -2,8 +2,8 @@ apiVersion: v2
 name: oncall
 description: Developer-friendly incident response with brilliant Slack integration
 type: application
-version: 1.3.49
-appVersion: v1.3.49
+version: 1.3.50
+appVersion: v1.3.50
 dependencies:
   - name: cert-manager
     version: v1.8.0