diff --git a/src/envelopePlugin.ts b/src/envelopePlugin.ts
index 0e19ee9..1b8ef77 100644
--- a/src/envelopePlugin.ts
+++ b/src/envelopePlugin.ts
@@ -1,5 +1,5 @@
 /* eslint-disable react-hooks/rules-of-hooks */
-import { useGenericAuth } from '@envelop/generic-auth'
+import { useGenericAuth, UnauthenticatedError } from '@envelop/generic-auth'
 import { MeshPlugin } from '@graphql-mesh/types'
 
 type UserType = {
@@ -18,7 +18,7 @@ const resolveUserFn = async (context: any) => {
 
 const validateUser = (params: any) => {
     if (!params.user) {
-        return new Error(`Unauthenticated!`)
+        return new UnauthenticatedError(`Unauthenticated!`)
     }
 }