diff --git a/package.json b/package.json
index fef6fcbcdd..e0a6c7ace5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,7 @@
 {
   "name": "liquidjs",
   "version": "10.19.0",
+  "sideEffects": false,
   "description": "A simple, expressive and safe Shopify / Github Pages compatible template engine in pure JavaScript.",
   "main": "dist/liquid.node.js",
   "module": "dist/liquid.node.mjs",