diff --git a/hack/run-nightly-cluster-e2e.sh b/hack/run-nightly-cluster-e2e.sh
index a0d3c202f..6a10fcd60 100644
--- a/hack/run-nightly-cluster-e2e.sh
+++ b/hack/run-nightly-cluster-e2e.sh
@@ -139,21 +139,21 @@ CLUSTER_OPERATION_NAME1="cluster1-install-"`date "+%H-%M-%S"`
 sed -i "s/e2e-cluster1-install/${CLUSTER_OPERATION_NAME1}/"  "${dest_config_path}"/kubeanClusterOps.yml
 
 
-## prepare cluster upgrade job yml --> upgrade from v1.26.0 to v1.26.7
+## prepare cluster upgrade job yml --> upgrade from v1.27.0 to v1.28.0
 dest_config_path="${REPO_ROOT}"/test/kubean_sonobouy_nightlye2e/e2e-upgrade-cluster-y/
 func_prepare_config_yaml "${SOURCE_CONFIG_PATH}"  "${dest_config_path}"
 CLUSTER_OPERATION_NAME2="cluster1-upgrade-y"
 sed -i "s/e2e-cluster1-install/${CLUSTER_OPERATION_NAME2}/"  "${dest_config_path}"/kubeanClusterOps.yml
 sed -i "s/cluster.yml/upgrade-cluster.yml/" "${dest_config_path}"/kubeanClusterOps.yml
-sed -i "s/v1.26.0/v1.26.7/"  "${dest_config_path}"/vars-conf-cm.yml
+sed -i "s/v1.27.0/v1.28.0/"  "${dest_config_path}"/vars-conf-cm.yml
 
-## prepare cluster upgrade job yml --> upgrade from v1.26.0 to v1.27.1
+## prepare cluster upgrade job yml --> upgrade from v1.27.0 to v1.27.1
 dest_config_path="${REPO_ROOT}"/test/kubean_sonobouy_nightlye2e/e2e-upgrade-cluster-z/
 func_prepare_config_yaml "${SOURCE_CONFIG_PATH}"  "${dest_config_path}"
 CLUSTER_OPERATION_NAME3="cluster1-upgrade-z"
 sed -i "s/e2e-cluster1-install/${CLUSTER_OPERATION_NAME3}/"  "${dest_config_path}"/kubeanClusterOps.yml
 sed -i "s/cluster.yml/upgrade-cluster.yml/" "${dest_config_path}"/kubeanClusterOps.yml
-sed -i "s/v1.26.0/v1.27.1/"  "${dest_config_path}"/vars-conf-cm.yml
+sed -i "s/v1.27.0/v1.27.1/"  "${dest_config_path}"/vars-conf-cm.yml
 
 ginkgo -v -race -timeout=6h --fail-fast ./test/kubean_sonobouy_nightlye2e/  -- --kubeconfig="${KUBECONFIG_FILE}" \
           --clusterOperationName="${CLUSTER_OPERATION_NAME1}"  --vmipaddr="${vm_ip_addr1}" --vmipaddr2="${vm_ip_addr2}" \
diff --git a/hack/yml_utils.sh b/hack/yml_utils.sh
index 159f25522..b83050876 100644
--- a/hack/yml_utils.sh
+++ b/hack/yml_utils.sh
@@ -76,7 +76,7 @@ function yamlUtil::abstract_groupVars() {
     yq -i '.metrics_server_enabled = "true"'  $groupVarYml
     yq -i '.local_path_provisioner_enabled = "true"'  $groupVarYml
     yq -i '.kubeadm_init_timeout = "600s"'  $groupVarYml
-    yq -i '.kube_version = "v1.26.0"'  $groupVarYml
+    yq -i '.kube_version = "v1.27.0"'  $groupVarYml
 }
 
 function yamlUtil::update_groupVars() {
diff --git a/test/common/vars-conf-cm.yml b/test/common/vars-conf-cm.yml
index 0c08c65b6..a3bf4f71c 100644
--- a/test/common/vars-conf-cm.yml
+++ b/test/common/vars-conf-cm.yml
@@ -7,7 +7,7 @@ data:
   group_vars.yml: |
     # k8s-cluster
     unsafe_show_logs: true
-    kube_version: "v1.26.0"
+    kube_version: "v1.27.0"
     container_manager: containerd
     k8s_image_pull_policy: IfNotPresent
     kube_network_plugin: calico
diff --git a/test/tools/config.go b/test/tools/config.go
index 749e078c3..4c66d2161 100644
--- a/test/tools/config.go
+++ b/test/tools/config.go
@@ -32,8 +32,8 @@ const (
 )
 
 const (
-	OriginK8Version             = "v1.26.0"
-	UpgradeK8Version_Y          = "v1.26.7"
+	OriginK8Version             = "v1.27.0"
+	UpgradeK8Version_Y          = "v1.28.0"
 	UpgradeK8Version_Z          = "v1.27.1"
 	NginxAlpha                  = "release-ci.daocloud.io/kubean/nginx:alpine"
 	E2eInstallClusterYamlFolder = "e2e-install-cluster"