diff --git a/package.json b/package.json
index 5a7501a..d89ba8f 100644
--- a/package.json
+++ b/package.json
@@ -26,5 +26,6 @@
   "license": "Apache-2.0",
   "keywords": [
     "diff"
-  ]
-}
+  ],
+  "sideEffects": false
+}
\ No newline at end of file