diff --git a/web/views/index.erb b/web/views/index.erb
index a1301e7..a4e662b 100644
--- a/web/views/index.erb
+++ b/web/views/index.erb
@@ -1859,7 +1859,7 @@ var(--fg); }
             L.polyline(segment.latlngs, {
               color: segment.color,
               weight: 2,
-              opacity: 0.6,
+              opacity: 0.42,
               className: 'neighbor-connection-line'
             }).addTo(neighborLinesLayer);
           });