diff --git a/Hoverboard-Wheels.md b/Hoverboard-Wheels.md
index f25b4a2..5405975 100644
--- a/Hoverboard-Wheels.md
+++ b/Hoverboard-Wheels.md
@@ -21,7 +21,7 @@ All have been successfully used with this firmware as the wheel share those same
 - Hall sensors are 120° apart
 - 4° resolution
 
-<img src="https://github.com/EFeru/hoverboard-firmware-hack-FOC/blob/master/docs/pictures/motor_winding.png" width="700"><br>
+<img src="https://github.com/EFeru/hoverboard-firmware-hack-FOC/blob/main/docs/pictures/motor_winding.png" width="700"><br>
 
 Unfortunately the quality of the wheel might differ, over the years the inner design has been modified to cut costs down:
 - different stator and magnet size (20mm,25mm,30mm)