diff --git a/package.json b/package.json
index 08ee6ecabb..38472d6834 100644
--- a/package.json
+++ b/package.json
@@ -77,7 +77,7 @@
     "recast": "0.14.7",
     "serve": "^6.5.2",
     "sinon": "^4.5.0",
-    "url-polyfill": "^1.0.11",
+    "url-polyfill": "^1.0.13",
     "walk": "^2.3.9",
     "webpack": "3.11.0",
     "webpack-merge": "4.1.2"