diff --git a/examples/preact/package.json b/examples/preact/package.json
index c88aea592bb1f3..030ff0ae4922df 100644
--- a/examples/preact/package.json
+++ b/examples/preact/package.json
@@ -49,7 +49,7 @@
     "resolve": "1.10.0",
     "sass-loader": "7.1.0",
     "style-loader": "0.23.1",
-    "terser-webpack-plugin": "1.2.2",
+    "terser-webpack-plugin": "1.4.2",
     "url-loader": "1.1.2",
     "webpack": "4.28.3",
     "webpack-dev-server": "3.1.14",