diff --git a/package.json b/package.json
index be6623afbe..0e640a9364 100644
--- a/package.json
+++ b/package.json
@@ -83,7 +83,7 @@
     "serve-static": "^1.13.2",
     "shx": "^0.3.2",
     "sinon": "^6.0.0",
-    "terser-webpack-plugin": "^1.1.0",
+    "terser-webpack-plugin": "^1.2.1",
     "typescript": "^3.1.0-dev.20180905",
     "url-polyfill": "^1.1.3",
     "walk": "^2.3.9",