diff --git a/web/gui2-topo-lib/package.json b/web/gui2-topo-lib/package.json
index f2886e4..253d02e 100644
--- a/web/gui2-topo-lib/package.json
+++ b/web/gui2-topo-lib/package.json
@@ -21,7 +21,7 @@
     "@angular/platform-browser-dynamic": "~7.0.0",
     "@angular/router": "~7.0.0",
     "core-js": "^2.5.4",
-    "d3": "^5.2.0",
+    "d3": "^5.9.2",
     "gui2-fw-lib": "file:../gui2-fw-lib/dist/gui2-fw-lib/gui2-fw-lib-2.1.0.tgz",
     "rxjs": "~6.3.3",
     "topojson-client": "^3.0.0",