diff --git a/admin/pre-upgrade.sh b/admin/pre-upgrade.sh
deleted file mode 100644
index 86e3519..0000000
--- a/admin/pre-upgrade.sh
+++ /dev/null
@@ -1,21 +0,0 @@
-#!/bin/bash
-
-# get current values, argo app over cm
-get_kubezero_values
-
-# tumble new config through migrate.py
-migrate_argo_values.py < "$WORKDIR"/kubezero-values.yaml > "$WORKDIR"/new-kubezero-values.yaml
-
-# Update kubezero-values CM
-kubectl get cm -n kube-system kubezero-values -o=yaml | \
-  yq e '.data."values.yaml" |= load_str("/tmp/kubezero/new-kubezero-values.yaml")' | \
-  kubectl replace -f -
-
-# update argo app
-kubectl get application kubezero -n argocd -o yaml | \
-  kubezero_chart_version=$(yq .version /charts/kubezero/Chart.yaml) \
-  yq '.spec.source.helm.values |= load_str("/tmp/kubezero/new-kubezero-values.yaml") | .spec.source.targetRevision = strenv(kubezero_chart_version)' | \
-  kubectl apply -f -
-
-# finally remove annotation to allow argo to sync again
-kubectl patch app kubezero -n argocd --type json -p='[{"op": "remove", "path": "/metadata/annotations"}]'