Update README.md

README.md

@@ -130,4 +130,4 @@ If you use this model or dataset, please cite the following paper:
 - 🤖 **Model Variants**:  
   - [Llama-3.1-KokoroChat-High](https://huggingface.co/UEC-InabaLab/Llama-3.1-KokoroChat-High): fine-tuned on **2,601 dialogues** with client feedback scores between **70 and 98**
   - [Llama-3.1-KokoroChat-Full](https://huggingface.co/UEC-InabaLab/Llama-3.1-KokoroChat-Full): fine-tuned on **6,471 dialogues** with client feedback scores **≤ 98**
-- 📄 **Paper**: [ACL 2025 Paper (PDF)](https://drive.google.com/file/d/1T6XgvZii8rZ1kKLgOUGqm3BMvqQAvxEM/view?usp=sharing)
+- 📄 **Paper**: [ACL 2025 Paper (arXiv)](https://arxiv.org/abs/2506.01357)