diff --git a/README.md b/README.md
index d1af0d8..5acc063 100644
--- a/README.md
+++ b/README.md
@@ -91,6 +91,7 @@ Team in the Inaugural DIHARD Challenge](https://www.isca-speech.org/archive/pdfs
 * [DIVE: End-to-end Speech Diarization via Iterative Speaker Embedding](https://arxiv.org/abs/2105.13802)
 * [DOVER-Lap: A method for combining overlap-aware diarization outputs](https://arxiv.org/abs/2011.01997)
 * [Bayesian HMM clustering of x-vector sequences (VBx) in speaker diarization: Theory, implementation and analysis on standard tasks](https://www.sciencedirect.com/science/article/pii/S0885230821000619)
+* [AISHELL-4: An Open Source Dataset for Speech Enhancement, Separation, Recognition and Speaker Diarization in Conference Scenario](https://arxiv.org/abs/2104.03603), 2021
 
 #### 2020