diff --git a/Jenkinsfile b/Jenkinsfile
index 31498a631..0ad3383f2 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -14,7 +14,7 @@ void createCluster(String CLUSTER_SUFFIX) {
                 gcloud config set project $GCP_PROJECT
                 gcloud container clusters list --filter $CLUSTER_NAME-${CLUSTER_SUFFIX} --zone $region --format='csv[no-heading](name)' | xargs gcloud container clusters delete --zone $region --quiet || true
 
-                gcloud container clusters create --zone $region $CLUSTER_NAME-${CLUSTER_SUFFIX} --cluster-version=1.27 --machine-type=n1-standard-4 --preemptible --disk-size 30 --num-nodes=\$NODES_NUM --network=jenkins-vpc --subnetwork=jenkins-${CLUSTER_SUFFIX} --no-enable-autoupgrade --cluster-ipv4-cidr=/21 --labels delete-cluster-after-hours=6 && \
+                gcloud container clusters create --zone $region $CLUSTER_NAME-${CLUSTER_SUFFIX} --cluster-version=1.28 --machine-type=n1-standard-4 --preemptible --disk-size 30 --num-nodes=\$NODES_NUM --network=jenkins-vpc --subnetwork=jenkins-${CLUSTER_SUFFIX} --no-enable-autoupgrade --cluster-ipv4-cidr=/21 --labels delete-cluster-after-hours=6 && \
                 kubectl create clusterrolebinding cluster-admin-binding --clusterrole cluster-admin --user jenkins@"$GCP_PROJECT".iam.gserviceaccount.com || ret_val=\$?
                 if [ \${ret_val} -eq 0 ]; then break; fi
                 ret_num=\$((ret_num + 1))