diff --git a/src/main/resources/extensions/user.yaml b/src/main/resources/extensions/user.yaml
index d1c18f88d0..776b4aa077 100644
--- a/src/main/resources/extensions/user.yaml
+++ b/src/main/resources/extensions/user.yaml
@@ -2,6 +2,8 @@ apiVersion: v1alpha1
 kind: User
 metadata:
   name: anonymousUser
+  finalizers:
+    - system-protection
 spec:
   displayName: Anonymous User
   email: anonymous@example.com
@@ -12,6 +14,8 @@ apiVersion: v1alpha1
 kind: User
 metadata:
   name: ghost
+  finalizers:
+    - system-protection
 spec:
   displayName: 已删除用户
   email: ghost@example.com