diff --git a/web/gui/src/main/webapp/onos.css b/web/gui/src/main/webapp/onos.css
index eea7d9d..1b3becb 100644
--- a/web/gui/src/main/webapp/onos.css
+++ b/web/gui/src/main/webapp/onos.css
@@ -82,7 +82,7 @@
 svg .link {
     fill: none;
     stroke: #666;
-    stroke-width: 1.5px;
+    stroke-width: 2.0px;
     opacity: .7;
     /*marker-end: url(#end);*/