diff --git a/BUILD.gn b/BUILD.gn
index 9cb3e3b..4acb55f 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1,4 +1,15 @@
-# Copyright (c) Huawei Technologies Co., Ltd. 2022-2022. All rights reserved.
+# Copyright (C) 2023-2023 Huawei Device Co., 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.
 
 config("cast_engine_default_config") {
   cflags = [
diff --git a/cast_engine.gni b/cast_engine.gni
index 9419fcd..fd169f9 100644
--- a/cast_engine.gni
+++ b/cast_engine.gni
@@ -1,4 +1,15 @@
-# Copyright (c) Huawei Technologies Co., Ltd. 2022-2022. All rights reserved.
+# Copyright (C) 2023-2023 Huawei Device Co., 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.
 
 import("//build/ohos.gni")
 import("//build/ohos_var.gni")
diff --git a/hisysevent.yaml b/hisysevent.yaml
index 5193e84..090c031 100644
--- a/hisysevent.yaml
+++ b/hisysevent.yaml
@@ -1,4 +1,15 @@
-# Copyright (c) Huawei Technologies Co., Ltd. 2023-2023. All rights reserved.
+# Copyright (C) 2023-2023 Huawei Device Co., 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.
 # Description: hisysevent
 # Author: wangxueshuang
 # Create: 2023-01-30