diff --git a/src/alignment/data.py b/src/alignment/data.py
index 2150095..838169a 100644
--- a/src/alignment/data.py
+++ b/src/alignment/data.py
@@ -1,3 +1,19 @@
+# coding=utf-8
+# coding=utf-8
+# Copyright 2023 The HuggingFace Team. All rights reserved.
+#
+# 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 re
 from typing import List, Literal, Optional
 
diff --git a/src/alignment/model_utils.py b/src/alignment/model_utils.py
index cbaad69..9463f2e 100644
--- a/src/alignment/model_utils.py
+++ b/src/alignment/model_utils.py
@@ -1,3 +1,19 @@
+# coding=utf-8
+# coding=utf-8
+# Copyright 2023 The HuggingFace Team. All rights reserved.
+#
+# 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.
+
 from typing import Dict
 
 import torch