diff --git a/README.md b/README.md
index 4417e8d..727ce9b 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,7 @@ remotes::install_github("wenjie2wang/intsurv")
 ```
 
 
-## Reference
+## References
 
 Wang, W., Aseltine, R., Chen, K., & Yan, J. (2019).  Integrative Survival
 Analysis with Uncertain Event Times in Application to a Suicide Risk