diff --git a/package.json b/package.json
index e5ff9c5..e059c11 100644
--- a/package.json
+++ b/package.json
@@ -15,6 +15,7 @@
     "dist",
     "index.d.ts"
   ],
+  "sideEffects": false,
   "types": "index.d.ts",
   "scripts": {
     "prepublishOnly": "run-s build",