diff --git a/package.json b/package.json
index 005ca62..551af73 100644
--- a/package.json
+++ b/package.json
@@ -73,5 +73,6 @@
     "prepare": "npm run build",
     "release": "np",
     "test": "ava"
-  }
+  },
+  "sideEffects": false
 }