Update README.md

README.md

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 ## Links
 - **GitHub:** https://github.com/ocx-lab/STELLA
-- **Paper:** [STELLA: A Multimodal LLM for Protein Functional Annotation via Unified Sequence-Structure Encoding](https://arxiv.org/abs/2506.03800) — accepted as a Findings Paper at ACL 2026.
+- **Paper:** [STELLA: A Multimodal LLM for Protein Functional Annotation via Unified Sequence-Structure Encoding](https://arxiv.org/abs/2506.03800v2) — accepted as a Findings Paper at ACL 2026.
 - **Related dataset:** [OPI (Open Protein Instructions)](https://huggingface.co/datasets/BAAI/OPI)
 
 ## Dataset Overview