diff --git a/server/airtraffic.mjs b/server/airtraffic.mjs
index 15a220c..1a9aa4f 100644
--- a/server/airtraffic.mjs
+++ b/server/airtraffic.mjs
@@ -12,7 +12,7 @@ export async function getShapes() {
 		return JSON.parse(await readFile(SHAPES_PATH, 'utf8'))
 	}
 
-	const r    = await fetch('https://raw.githubusercontent.com/wiedehopf/tar1090/master/html/markers.min.js')
+	const r    = await fetch('https://raw.githubusercontent.com/wiedehopf/tar1090/refs/heads/master/html/markers.js')
 	const text = await r.text()
 
 	// tar1090 exposes a var with all the shape definitions