diff --git a/README.md b/README.md
index 5fa5248..9034040 100755
--- a/README.md
+++ b/README.md
@@ -574,8 +574,9 @@ MIT License - see [LICENSE](LICENSE) for details.
 
 ## 🙏 Acknowledgments
 
-This work is done at [**Berkeley Sky Computing Lab**](https://sky.cs.berkeley.edu/).
+This work is done at [**Berkeley Sky Computing Lab**](https://sky.cs.berkeley.edu/).
 
+Co-contributors: Yichuan Wang @yichuan-w & Zhifei Li @andylizf.
 
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