diff --git a/README.md b/README.md
index 2dd14bb..49763a8 100644
--- a/README.md
+++ b/README.md
@@ -384,7 +384,7 @@ We use a three-stage progressive pipeline, all the setting can be found [here](.
 
 ### Data Preparation
 
-Please refer to [this guide](./tools/offload_data/README.md) for how to obtain the training data required by Helios.
+Please refer to [this guide](./tools/offload_data/README.md) for how to obtain the training data required by Helios. And we prepare a toy training data [here](https://huggingface.co/BestWishYsh/HeliosBench-Weights/tree/main/demo_data).
 
 ### Run the model
 
diff --git a/tools/offload_data/README.md b/tools/offload_data/README.md
index 419fb9c..8245e56 100644
--- a/tools/offload_data/README.md
+++ b/tools/offload_data/README.md
@@ -1,5 +1,5 @@
 # <u>Data Preprocessing Pipeline</u> by *Helios*
-This repository describes the data preprocessing pipeline used in the [Helios](https://arxiv.org/abs/XXXX.XXXXX) paper.
+This repository describes the data preprocessing pipeline used in the [Helios](https://arxiv.org/abs/2603.04379) paper. And we prepare a toy training data [here](https://huggingface.co/BestWishYsh/HeliosBench-Weights/tree/main/demo_data).
 
 
 ## ⚙️ Requirements and Installation