diff --git a/VoiceCamera/LICENSE b/VoiceCamera/LICENSE
index eb44b24a0ff113ed4b008408a3406f792bde2adb..6c25c86ac05f0cbdd95438aae07d77ed8c646aff 100644
--- a/VoiceCamera/LICENSE
+++ b/VoiceCamera/LICENSE
@@ -4,14 +4,36 @@
    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
+       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.
-  
+
+     We use Alibaba's open-source fastjson.jar. The details are as follows:
+
+         ### License
+
+     Fastjson is released under the [Apache 2.0 license](LICENSE).
+
+      ```
+     Copyright 1999-2021 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 the following link.
+
+         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.
+     ```
+
 Apache License, Version 2.0
 TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION