diff --git a/package.json b/package.json
index f06db2a..fa4647d 100644
--- a/package.json
+++ b/package.json
@@ -43,6 +43,7 @@
   "publishConfig": {
     "access": "public"
   },
+  "sideEffects": false,
   "scripts": {
     "build": "pnpm clean && tsc --project tsconfig.build.json && tsc --project tsconfig.build-esm.json",
     "clean": "rimraf dist coverage",