diff --git a/tools/builder/rollup.js b/tools/builder/rollup.js
index <HASH>..<HASH> 100644
--- a/tools/builder/rollup.js
+++ b/tools/builder/rollup.js
@@ -314,6 +314,7 @@ async function createCompat(name) {
           {
             loose: true,
             useBuiltIns: 'entry',
+            corejs: 3,
             modules: false,
             shippedProposals: true,
             targets: compatTarget,
mute babel warning during compat build