diff --git a/package-lock.json b/package-lock.json
index f73a3cae..a0f2674e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -67,16 +67,6 @@
       "integrity": "sha512-E5BN68cqR7dhKan1SfqgPGhQ178bkVKpXTPEXnFJBrEt8/DKRZlybmy+IgYLTeN7tp1R5Ccmbm2rBk17sHYU3g==",
       "dev": true
     },
-    "@babel/polyfill": {
-      "version": "7.0.0-beta.47",
-      "resolved": "https://registry.npmjs.org/@babel/polyfill/-/polyfill-7.0.0-beta.47.tgz",
-      "integrity": "sha512-jDKBjX1K/fUNrPGo3wDKEWIXDHZEgpsKTRo3B4Ox5cq5Hxcp219ez/oGofDjNMUJAUI+gfsQfRarMkC5f3uiYw==",
-      "dev": true,
-      "requires": {
-        "core-js": "^2.5.3",
-        "regenerator-runtime": "^0.11.1"
-      }
-    },
     "@babel/runtime": {
       "version": "7.5.5",
       "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.5.5.tgz",
diff --git a/package.json b/package.json
index b40a75fd..c19de87a 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,6 @@
     "url": "https://github.com/Tonejs/Tone.js/issues"
   },
   "devDependencies": {
-    "@babel/polyfill": "^7.0.0-beta.47",
     "@tonejs/plot": "0.0.26",
     "@types/chai": "^4.1.7",
     "@types/mocha": "^5.2.6",