diff --git a/docs/index.md b/docs/index.md
index 68de28a480f703a25a2f3563d4f49b1319770ec8..e816825dec8f70f9c778c6ca57ae401bf0adbd1d 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -24,7 +24,7 @@ With that, materials present a crucial step in overcoming environmental challeng
 
 **THE CONTINUATION OF BIOMATERIAL RESEARCH AND APPLICATIONS**
 
-![Biomaterial prototypes](./images/home/PROTO_1.jpg){ width=400 align=center }
+![](./images/home/PROTO_1.jpg){ width=600 align=center }