diff --git a/README.md b/README.md
index 2c54df0..59bf7d6 100644
--- a/README.md
+++ b/README.md
@@ -13,8 +13,13 @@ Our paper can be downloaded from [[Arxiv]](https://arxiv.org/pdf/2106.06340v1.pd
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+## Attention
+***This project is for technical and academic use only. Please do not apply it to illegal and unethical scenarios.***
+
 ## Top News <img width=8% src="./docs/img/new.gif"/>
 
+**`2021-07-02`**: We have added a hyper parameter to allow users to choose whether to add the simswap logo as a watermark, please go to the section "About watermark of simswap logo" of [Inference for image or video face swapping](./docs/guidance/usage.md) for details.
+
 **`2021-06-20`**: We release the scripts for arbitrary video and image processing, and a colab demo.
 
 ## Dependencies