diff --git a/charts/kube-prometheus-stack/README.md b/charts/kube-prometheus-stack/README.md
index 853b3d8f2ec3..519564dd7440 100644
--- a/charts/kube-prometheus-stack/README.md
+++ b/charts/kube-prometheus-stack/README.md
@@ -82,6 +82,25 @@ _See [helm upgrade](https://helm.sh/docs/helm/helm_upgrade/) for command documen
 
 A major chart version change (like v1.2.3 -> v2.0.0) indicates that there is an incompatible breaking change needing manual actions.
 
+### From 54.x to 55.x
+
+This version upgrades Prometheus-Operator to v0.70.0
+
+Run these commands to update the CRDs before applying the upgrade.
+
+```console
+kubectl apply --server-side -f https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/v0.70.0/example/prometheus-operator-crd/monitoring.coreos.com_alertmanagerconfigs.yaml
+kubectl apply --server-side -f https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/v0.70.0/example/prometheus-operator-crd/monitoring.coreos.com_alertmanagers.yaml
+kubectl apply --server-side -f https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/v0.70.0/example/prometheus-operator-crd/monitoring.coreos.com_podmonitors.yaml
+kubectl apply --server-side -f https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/v0.70.0/example/prometheus-operator-crd/monitoring.coreos.com_probes.yaml
+kubectl apply --server-side -f https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/v0.70.0/example/prometheus-operator-crd/monitoring.coreos.com_prometheusagents.yaml
+kubectl apply --server-side -f https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/v0.70.0/example/prometheus-operator-crd/monitoring.coreos.com_prometheuses.yaml
+kubectl apply --server-side -f https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/v0.70.0/example/prometheus-operator-crd/monitoring.coreos.com_prometheusrules.yaml
+kubectl apply --server-side -f https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/v0.70.0/example/prometheus-operator-crd/monitoring.coreos.com_scrapeconfigs.yaml
+kubectl apply --server-side -f https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/v0.70.0/example/prometheus-operator-crd/monitoring.coreos.com_servicemonitors.yaml
+kubectl apply --server-side -f https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/v0.70.0/example/prometheus-operator-crd/monitoring.coreos.com_thanosrulers.yaml
+```
+
 ### From 53.x to 54.x
 
 Grafana Helm Chart has bumped to version 7