diff --git a/README.md b/README.md
index 2206f32cc9314c1cc5ced10e52a7ec42736d944e..8ff43f3dc7a06beafcf466486c24f1564374ccc9 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@ _**Circuit design**_
 
 _**Board design**_
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-![Overview diagram](Pictures/3d_board.jpg)
+![Overview diagram](Pictures/3d_board.png)
 
 _**Custom shell**_
 -----------