diff --git a/helm/dev/cortex-prometheus-operator/Chart.yaml b/helm/dev/cortex-prometheus-operator/Chart.yaml
index 406d41f58..9f5a520f9 100644
--- a/helm/dev/cortex-prometheus-operator/Chart.yaml
+++ b/helm/dev/cortex-prometheus-operator/Chart.yaml
@@ -10,4 +10,4 @@ dependencies:
   # CRDs of the prometheus operator, such as PrometheusRule, ServiceMonitor, etc.
   - name: kube-prometheus-stack
     repository: oci://ghcr.io/prometheus-community/charts
-    version: 87.19.2
+    version: 87.20.0