diff --git a/internal/oauthex/auth_meta.go b/internal/oauthex/auth_meta.go
index 1d6deb9..1f075f8 100644
--- a/internal/oauthex/auth_meta.go
+++ b/internal/oauthex/auth_meta.go
@@ -1,5 +1,5 @@
-// Copyright 2025 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
+// Copyright 2025 The Go MCP SDK Authors. All rights reserved.
+// Use of this source code is governed by an MIT-style
 // license that can be found in the LICENSE file.
 
 // This file implements Authorization Server Metadata.
diff --git a/internal/oauthex/auth_meta_test.go b/internal/oauthex/auth_meta_test.go
index 724c78f..b83402f 100644
--- a/internal/oauthex/auth_meta_test.go
+++ b/internal/oauthex/auth_meta_test.go
@@ -1,5 +1,5 @@
-// Copyright 2025 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
+// Copyright 2025 The Go MCP SDK Authors. All rights reserved.
+// Use of this source code is governed by an MIT-style
 // license that can be found in the LICENSE file.
 
 package oauthex
diff --git a/internal/oauthex/oauth2.go b/internal/oauthex/oauth2.go
index cf06ab3..de16449 100644
--- a/internal/oauthex/oauth2.go
+++ b/internal/oauthex/oauth2.go
@@ -1,5 +1,5 @@
-// Copyright 2025 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
+// Copyright 2025 The Go MCP SDK Authors. All rights reserved.
+// Use of this source code is governed by an MIT-style
 // license that can be found in the LICENSE file.
 
 // Package oauthex implements extensions to OAuth2.
diff --git a/internal/oauthex/oauth2_test.go b/internal/oauthex/oauth2_test.go
index 92017f8..9c3da15 100644
--- a/internal/oauthex/oauth2_test.go
+++ b/internal/oauthex/oauth2_test.go
@@ -1,5 +1,5 @@
-// Copyright 2025 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
+// Copyright 2025 The Go MCP SDK Authors. All rights reserved.
+// Use of this source code is governed by an MIT-style
 // license that can be found in the LICENSE file.
 
 package oauthex
diff --git a/internal/oauthex/resource_meta.go b/internal/oauthex/resource_meta.go
index 3818d86..71d52cd 100644
--- a/internal/oauthex/resource_meta.go
+++ b/internal/oauthex/resource_meta.go
@@ -1,5 +1,5 @@
-// Copyright 2025 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
+// Copyright 2025 The Go MCP SDK Authors. All rights reserved.
+// Use of this source code is governed by an MIT-style
 // license that can be found in the LICENSE file.
 
 // This file implements Protected Resource Metadata.