diff --git a/scripts/build/esbuild-plugins/umd.mjs b/scripts/build/esbuild-plugins/umd.mjs
index 77eb5ddd2..69e6f2da8 100644
--- a/scripts/build/esbuild-plugins/umd.mjs
+++ b/scripts/build/esbuild-plugins/umd.mjs
@@ -46,8 +46,8 @@ function getUmdWrapper(name, build) {
 
   if (minify) {
     wrapper = build.esbuild
-      .buildSync({ stdin: { contents: wrapper }, minify, write: false })
-      .outputFiles[0].text.trim();
+      .transformSync(wrapper, { loader: "js", minify })
+      .code.trim();
   }
 
   const [intro, outro] = wrapper.split(placeholder);