diff --git a/codec/json/api.go b/codec/json/api.go
index 0779b4e8..f2135683 100644
--- a/codec/json/api.go
+++ b/codec/json/api.go
@@ -1,3 +1,7 @@
+// Copyright 2025 Gin Core Team. All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package json
 
 import "io"
diff --git a/codec/json/go_json.go b/codec/json/go_json.go
index 1dba0d69..42a476ac 100644
--- a/codec/json/go_json.go
+++ b/codec/json/go_json.go
@@ -1,4 +1,4 @@
-// Copyright 2017 Bo-Yi Wu. All rights reserved.
+// Copyright 2025 Gin Core Team. All rights reserved.
 // Use of this source code is governed by a MIT style
 // license that can be found in the LICENSE file.
 
diff --git a/codec/json/json.go b/codec/json/json.go
index 8fa3f68a..2971f42f 100644
--- a/codec/json/json.go
+++ b/codec/json/json.go
@@ -1,4 +1,4 @@
-// Copyright 2017 Bo-Yi Wu. All rights reserved.
+// Copyright 2025 Gin Core Team. All rights reserved.
 // Use of this source code is governed by a MIT style
 // license that can be found in the LICENSE file.
 
diff --git a/codec/json/jsoniter.go b/codec/json/jsoniter.go
index 5cb9db68..ea624e77 100644
--- a/codec/json/jsoniter.go
+++ b/codec/json/jsoniter.go
@@ -1,4 +1,4 @@
-// Copyright 2017 Bo-Yi Wu. All rights reserved.
+// Copyright 2025 Gin Core Team. All rights reserved.
 // Use of this source code is governed by a MIT style
 // license that can be found in the LICENSE file.
 
diff --git a/codec/json/sonic.go b/codec/json/sonic.go
index de009831..69496565 100644
--- a/codec/json/sonic.go
+++ b/codec/json/sonic.go
@@ -1,4 +1,4 @@
-// Copyright 2022 Gin Core Team. All rights reserved.
+// Copyright 2025 Gin Core Team. All rights reserved.
 // Use of this source code is governed by a MIT style
 // license that can be found in the LICENSE file.