diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7b0038bb..0bf46924 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 * [DEPENDENCY] Update quay.io/cortexproject/cortex Docker tag to v1.15.0 #453
 * [DEPENDENCY] Update quay.io/cortexproject/cortex Docker tag to v1.15.1 #456
 * [DEPENDENCY] Update quay.io/cortexproject/cortex Docker tag to v1.15.2 #459
+* [DEPENDENCY] Update quay.io/cortexproject/cortex Docker tag to v1.15.3 #471
 * [BUGFIX] Correctly interpret .Capabilities.KubeVersion when it looks like a prerelease #457
 
 ## 2.1.0 / 2023-03-17
diff --git a/Chart.yaml b/Chart.yaml
index e219c4ee..caaec7cc 100755
--- a/Chart.yaml
+++ b/Chart.yaml
@@ -1,6 +1,6 @@
 apiVersion: v2
 version: 2.1.0
-appVersion: v1.15.2
+appVersion: v1.15.3
 description: 'Horizontally scalable, highly available, multi-tenant, long term Prometheus.'
 home: https://cortexmetrics.io/
 icon: https://avatars2.githubusercontent.com/u/43045022?s=200&v=4
diff --git a/README.md b/README.md
index 2ea8b083..ef5ee84b 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 # cortex
 
-![Version: 2.1.0](https://img.shields.io/badge/Version-2.1.0-informational?style=flat-square) ![AppVersion: v1.15.2](https://img.shields.io/badge/AppVersion-v1.15.2-informational?style=flat-square)
+![Version: 2.1.0](https://img.shields.io/badge/Version-2.1.0-informational?style=flat-square) ![AppVersion: v1.15.3](https://img.shields.io/badge/AppVersion-v1.15.3-informational?style=flat-square)
 
 Horizontally scalable, highly available, multi-tenant, long term Prometheus.