diff --git a/package.json b/package.json
index b56f678..e0d9001 100644
--- a/package.json
+++ b/package.json
@@ -43,10 +43,10 @@
     "webpack": "^2.2.1"
   },
   "dependencies": {
+    "@webcomponents/webcomponentsjs": "^1.0.7",
     "assert": "^1.4.1",
     "d3-time-format": "^2.0.3",
     "jsdom-wc": "^11.0.0-alpha-1",
-    "katex": "^0.7.1",
-    "webcomponents.js": "webcomponents/webcomponentsjs"
+    "katex": "^0.7.1"
   }
 }
diff --git a/rollup.config.js b/rollup.config.js
index 02a8e79..b7f4371 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -35,8 +35,8 @@ const defaultConfig = {
 Object.assign(componentsConfig, defaultConfig);
 componentsConfig.plugins.push(copy({
   './node_modules/katex/dist/fonts': 'dist/fonts',
-  './node_modules/webcomponents.js/webcomponents-lite.js': 'dist/webcomponents-lite.js',
-  './node_modules/webcomponents.js/webcomponents-lite.js.map': 'dist/webcomponents-lite.js.map',
+  './node_modules/@webcomponents/webcomponentsjs/webcomponents-lite.js': 'dist/webcomponents-lite.js',
+  './node_modules/@webcomponents/webcomponentsjs/webcomponents-lite.js.map': 'dist/webcomponents-lite.js.map',
 }));
 Object.assign(transformsConfig, defaultConfig);