diff --git a/README.md b/README.md
index 5a6656a..874a48f 100644
--- a/README.md
+++ b/README.md
@@ -22,3 +22,4 @@ cargo run
 <br>
 
 ### README in [English 🇬🇧](README-en.md).
+[![ko-fi](https://ko-fi.com/img/githubbutton_sm.svg)](https://ko-fi.com/P5P311PGR8)