diff --git a/package.json b/package.json
index da1723c508..72228ece8f 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
     "expect.js": "0.3.1",
     "front-matter": "^2.1.2",
     "fs-extra": "^6.0.0",
-    "google-closure-compiler": "20180402.0.0",
+    "google-closure-compiler": "20180506.0.0",
     "handlebars": "4.0.11",
     "html-webpack-plugin": "^3.0.1",
     "istanbul": "0.4.5",