diff --git a/docs/source/index.rst b/docs/source/index.rst
index 79c90bc..aede295 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -2,7 +2,7 @@
 Flow Matching
 =============
 
-`flow_matching` is a PyTorch library for implementing flow matching algorithms, featuring state-of-the-art continuous and discrete implementations. It includes practical examples for both text and image modalities. This repository is part of `Flow Matching Guide and Codebase <http://cnn.com>`_.
+`flow_matching` is a PyTorch library for implementing flow matching algorithms, featuring state-of-the-art continuous and discrete implementations. It includes practical examples for both text and image modalities. This repository is part of `Flow Matching Guide and Codebase <https://arxiv.org/abs/2412.06264>`_.
 
 .. image:: _images/teaser.png
   :width: 800