diff --git a/README.md b/README.md
index d0de784e58..949aa76f91 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+**Note:** This repository is modified from oauth2-proxy for applications that support proxy wasm. For more details, refer to [Higress OIDC Wasm Plugin](https://github.com/alibaba/higress/tree/main/plugins/wasm-go/extensions/oidc).
+
 ![OAuth2 Proxy](docs/static/img/logos/OAuth2_Proxy_horizontal.svg)
 
 [![Continuous Integration](https://github.com/oauth2-proxy/oauth2-proxy/actions/workflows/ci.yaml/badge.svg)](https://github.com/oauth2-proxy/oauth2-proxy/actions/workflows/ci.yaml)
diff --git a/pkg/mapstructure/decode_hooks.go b/pkg/mapstructure/decode_hooks.go
index d9b7730c0f..a8f3ad124c 100644
--- a/pkg/mapstructure/decode_hooks.go
+++ b/pkg/mapstructure/decode_hooks.go
@@ -1,3 +1,15 @@
+// Copyright (c) 2013 Mitchell Hashimoto
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+
 package mapstructure
 
 import (
diff --git a/pkg/mapstructure/error.go b/pkg/mapstructure/error.go
index 47a99e5af3..798f71f1a0 100644
--- a/pkg/mapstructure/error.go
+++ b/pkg/mapstructure/error.go
@@ -1,3 +1,15 @@
+// Copyright (c) 2013 Mitchell Hashimoto
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+
 package mapstructure
 
 import (
diff --git a/pkg/mapstructure/mapstructure.go b/pkg/mapstructure/mapstructure.go
index 0d50634e45..29f12b1a91 100644
--- a/pkg/mapstructure/mapstructure.go
+++ b/pkg/mapstructure/mapstructure.go
@@ -1,3 +1,15 @@
+// Copyright (c) 2013 Mitchell Hashimoto
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+
 // Package mapstructure exposes functionality to convert one arbitrary
 // Go type into another, typically to convert a map[string]interface{}
 // into a native Go structure.
diff --git a/pkg/providers/go_oidc/jose.go b/pkg/providers/go_oidc/jose.go
index a1dbbfae6d..b82fa75ec3 100644
--- a/pkg/providers/go_oidc/jose.go
+++ b/pkg/providers/go_oidc/jose.go
@@ -1,3 +1,17 @@
+// Copyright (c) 2022 Alibaba Group Holding Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package go_oidc
 
 import jose "github.com/go-jose/go-jose/v4"
diff --git a/pkg/providers/go_oidc/jwks.go b/pkg/providers/go_oidc/jwks.go
index 0542a1b938..3e550217cb 100644
--- a/pkg/providers/go_oidc/jwks.go
+++ b/pkg/providers/go_oidc/jwks.go
@@ -1,3 +1,17 @@
+// Copyright (c) 2022 Alibaba Group Holding Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package go_oidc
 
 import (
diff --git a/pkg/providers/go_oidc/oidc.go b/pkg/providers/go_oidc/oidc.go
index 56e9265542..4dd1558a20 100644
--- a/pkg/providers/go_oidc/oidc.go
+++ b/pkg/providers/go_oidc/oidc.go
@@ -1,3 +1,17 @@
+// Copyright (c) 2022 Alibaba Group Holding Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package go_oidc
 
 import (
diff --git a/pkg/providers/go_oidc/verify.go b/pkg/providers/go_oidc/verify.go
index 34f5bf8d67..574f2f77e7 100644
--- a/pkg/providers/go_oidc/verify.go
+++ b/pkg/providers/go_oidc/verify.go
@@ -1,3 +1,17 @@
+// Copyright (c) 2022 Alibaba Group Holding Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package go_oidc
 
 import (