diff --git a/charts/kubeadm/Chart.yaml b/charts/kubeadm/Chart.yaml
index 2941ea5c..c2622344 100644
--- a/charts/kubeadm/Chart.yaml
+++ b/charts/kubeadm/Chart.yaml
@@ -11,4 +11,4 @@ keywords:
 maintainers:
   - name: Stefan Reimer
     email: stefan@zero-downtime.net
-kubeVersion: ">= 1.27.0"
+kubeVersion: ">= 1.26.0"
diff --git a/charts/kubeadm/templates/_helpers.tpl b/charts/kubeadm/templates/_helpers.tpl
index de606d21..2b3ac87d 100644
--- a/charts/kubeadm/templates/_helpers.tpl
+++ b/charts/kubeadm/templates/_helpers.tpl
@@ -1,6 +1,6 @@
 {{- /* Feature gates for all control plane components */ -}}
 {{- define "kubeadm.featuregates" }}
-{{- $gates := list "CustomCPUCFSQuotaPeriod" "MemoryQoS" "UserNamespacesSupport" }}
+{{- $gates := list "CustomCPUCFSQuotaPeriod" "MemoryQoS" }}
 {{- if eq .return "csv" }}
 {{- range $key := $gates }}
 {{- $key }}=true,
diff --git a/charts/kubezero/Chart.yaml b/charts/kubezero/Chart.yaml
index 731bc05d..d1be8a81 100644
--- a/charts/kubezero/Chart.yaml
+++ b/charts/kubezero/Chart.yaml
@@ -15,4 +15,4 @@ dependencies:
   - name: kubezero-lib
     version: ">= 0.1.6"
     repository: https://cdn.zero-downtime.net/charts
-kubeVersion: ">= 1.27.0"
+kubeVersion: ">= 1.26.0"