diff --git a/README.md b/README.md
index f286e76..aec54a8 100644
--- a/README.md
+++ b/README.md
@@ -71,4 +71,8 @@ You can define your own scene in `main` method of `App` class in `3d_renderer/ap
 
 ## Attribution
 
+You can copy this repository and create your own version of the app freely. However, it would be nice if you included this repository in the description to your repository or in README file.
+
+**Other sources:**
+
 - Icon by <a href="icons8.com">Icons8</a>
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