diff --git a/app/scratch-blocks/package.json b/app/scratch-blocks/package.json
index fd494a0..5e46054 100644
--- a/app/scratch-blocks/package.json
+++ b/app/scratch-blocks/package.json
@@ -37,7 +37,7 @@
     "gh-pages": "0.12.0",
     "glob": "7.1.2",
     "google-closure-compiler": "20180402.0.0",
-    "google-closure-library": "20180204.0.0",
+    "google-closure-library": "20200830.0.0",
     "graceful-fs": "4.1.11",
     "json": "9.0.4",
     "rimraf": "2.6.2",