diff --git a/perceiver/README.md b/perceiver/README.md
index eaf136d..04b83eb 100644
--- a/perceiver/README.md
+++ b/perceiver/README.md
@@ -108,3 +108,4 @@ Olivier Hénaff, Matthew M. Botvinick, Andrew Zisserman, Oriol Vinyals,
 João Carreira.
 *Perceiver IO: A General Architecture for Structured Inputs & Outputs*.
 arXiv, 2021.
+https://arxiv.org/abs/2107.14795