diff --git a/utils/mapFeatures.js b/utils/mapFeatures.js
index dfc10e5d2..640e261d3 100644
--- a/utils/mapFeatures.js
+++ b/utils/mapFeatures.js
@@ -299,17 +299,17 @@ export const setupPolylines = (map, linePositions, lineColors, tooltipContents,
     }).addTo(map);
 
     polyline.on("mouseover", (e) => {
-      polyline.setStyle({ weight: 15 });
+      polyline.setStyle({ weight: 20 });
       hideContextMenuItemByIndex(map, 0);
       hideContextMenuItemByIndex(map, 1);
     });
 
     polyline.on("mousedown", (e) => {
-      polyline.setStyle({ weight: 15 });
+      polyline.setStyle({ weight: 20 });
     });
 
     polyline.on("mouseup", (e) => {
-      polyline.setStyle({ weight: 15 });
+      polyline.setStyle({ weight: 20 });
     });
 
     polyline.on("mouseout", (e) => {