diff --git a/package.json b/package.json
index 50f894b..f891a68 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
   "author": "Henri Bergius <henri.bergius@iki.fi>",
   "license": "MIT",
   "dependencies": {
-    "@webcomponents/webcomponentsjs": "^1.0.19",
+    "@webcomponents/webcomponentsjs": "^2.1.0",
     "color-interpolate": "^1.0.2",
     "d3": "^4.12.0",
     "dateformat": "^3.0.2",