diff --git a/package.json b/package.json
index de2c58a..20d0de8 100644
--- a/package.json
+++ b/package.json
@@ -15,6 +15,7 @@
     "node": ">=16"
   },
   "engineStrict": true,
+  "sideEffects": false,
   "type": "module",
   "module": "dist-mjs/index.mjs",
   "main": "dist-cjs/index.cjs",