diff --git a/convlab2/dst/setsumbt/README.md b/convlab2/dst/setsumbt/README.md
index 34105f86db1f6525d55f20826e74f25ae861cf92..700fdf6ae93312c7f3c09358847c0cf4167813c4 100644
--- a/convlab2/dst/setsumbt/README.md
+++ b/convlab2/dst/setsumbt/README.md
@@ -1,5 +1,5 @@
 # Our paper
-[Uncertainty Measures in Neural Belief Tracking and the Effects on Dialogue Policy Performance](https://todo.pdf)
+[Uncertainty Measures in Neural Belief Tracking and the Effects on Dialogue Policy Performance](https://arxiv.org/abs/2109.04349)
 
 ## Structure
 ![SetSUMBT Architecture](https://gitlab.cs.uni-duesseldorf.de/general/dsml/setsumbt-public/-/raw/main/convlab2/dst/setsumbt/setSUMBT.png?inline=false)