diff --git a/apis/management.cattle.io/v3/authz_types.go b/apis/management.cattle.io/v3/authz_types.go
index af410e32..9bc660df 100644
--- a/apis/management.cattle.io/v3/authz_types.go
+++ b/apis/management.cattle.io/v3/authz_types.go
@@ -75,7 +75,7 @@ type GlobalRoleBinding struct {
 	metav1.ObjectMeta `json:"metadata,omitempty"`
 
 	UserName       string `json:"userName,omitempty" norman:"required,type=reference[user]"`
-	GlobalRoleName string `json:"globalRoleName,omitempty" norman:"required,type=reference[globalRole]"`
+	GlobalRoleName string `json:"globalRoleName,omitempty" norman:"required,noupdate,type=reference[globalRole]"`
 }
 
 type RoleTemplate struct {