diff --git a/README.md b/README.md
index 840231dd6..657417819 100644
--- a/README.md
+++ b/README.md
@@ -63,7 +63,7 @@ For a complete list of SMM features please check out the [SMM docs](https://smm-
 
 ### Prerequisites
 - kubectl installed
-- kubernetes cluster (version 1.22+)
+- kubernetes cluster (version 1.23+)
 - active kubecontext to the kubernetes cluster
 
 ###  Build and deploy
diff --git a/deploy/charts/istio-operator/Chart.yaml b/deploy/charts/istio-operator/Chart.yaml
index e4be4abce..ddc58de26 100644
--- a/deploy/charts/istio-operator/Chart.yaml
+++ b/deploy/charts/istio-operator/Chart.yaml
@@ -9,7 +9,7 @@ sources:
 icon: https://istio.io/latest/img/istio-whitelogo-bluebackground-framed.svg
 
 # Based on support status of Istio releases: https://istio.io/latest/docs/releases/supported-releases/#support-status-of-istio-releases
-kubeVersion: ">= 1.22.0-0 < 1.26.0-0"
+kubeVersion: ">= 1.23.0-0 < 1.27.0-0"
 
 version: 2.1.2
 appVersion: "v2.17.0"