diff --git a/README.md b/README.md
index 42f5509..2b3b45d 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@
     <a><img src="images/columbia.png"  height="70px" ></a>
 </div>
 
-[Project Sites]() | [arXiv](https://arxiv.org/abs/2202.07123) | Primary contact: [Xu Ma](mailto:ma.xu1@northeastern.edu)
+ [open review](https://openreview.net/forum?id=3Pbra-_u76D) | [arXiv](https://arxiv.org/abs/2202.07123) | Primary contact: [Xu Ma](mailto:ma.xu1@northeastern.edu)
 
 <div align="center">
   <img src="images/overview.png" width="650px" height="300px">