diff --git a/package.json b/package.json
index 2c64042..17e0671 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "iltorb": "^2.4.2",
     "nanomatch": "^1.2.13",
     "svgo": "^1.2.2",
-    "terser": "^3.17.0"
+    "terser": "^4.0.0"
   },
   "keywords": [
     "html",