diff --git a/README.md b/README.md
index 869455a0..e689736a 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@
 
 [![](https://img.shields.io/static/v1?label=Sponsor&message=%E2%9D%A4&logo=GitHub&color=%23fe8e86)](https://www.etlcpp.com/sponsor.html)
 
-[Project documentation](https://www.etlcpp.com/)
+[**Project documentation**](https://www.etlcpp.com/)
 
 ## Motivation