diff --git a/README.md b/README.md
index f430b98..1e7c493 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # NCL (Neighborhood-enrighed Contrastive Learning)
 
-This is the official PyTorch implementation for the paper:
+This is the official PyTorch implementation for the [paper](https://arxiv.org/abs/2202.06200):
 > Zihan Lin*, Changxin Tian*, Yupeng Hou* Wayne Xin Zhao. Improving Graph Collaborative Filtering with Neighborhood-enriched Contrastive Learning. WWW 2022.
 
 ## Overview