diff --git a/package.json b/package.json
index e3a3da8..bd8d74f 100644
--- a/package.json
+++ b/package.json
@@ -86,7 +86,7 @@
     "prompt": "^1.0.0",
     "replace-in-file": "^4.1.2",
     "shelljs": "^0.8.3",
-    "terser-webpack-plugin": "^1.4.1",
+    "terser-webpack-plugin": "^4.2.3",
     "uglify-template-string-loader": "^1.1.1",
     "wct-mocha": "^1.0.0",
     "webpack": "^4.39.2",