diff --git a/README.md b/README.md
index 42de1c1c..60b655ab 100644
--- a/README.md
+++ b/README.md
@@ -186,7 +186,7 @@ Output your evaluation in the following JSON format:
 ```
 ## Citation
 
-```
+```python
 @article{guo2024lightrag,
 title={LightRAG: Simple and Fast Retrieval-Augmented Generation}, 
 author={Zirui Guo and Lianghao Xia and Yanhua Yu and Tu Ao and Chao Huang},