diff --git a/packages/core/package.json b/packages/core/package.json
index b28f1e466..518c9ea40 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -78,5 +78,5 @@
   "publishConfig": {
     "access": "public"
   },
-  "sideEffects": false
+  "sideEffects": true
 }