diff --git a/packages/webamp/scripts/postcss-optimize-data-uri-pngs.test.js b/packages/webamp/scripts/postcss-optimize-data-uri-pngs.test.js
index f2e1dbf0..412374d0 100644
--- a/packages/webamp/scripts/postcss-optimize-data-uri-pngs.test.js
+++ b/packages/webamp/scripts/postcss-optimize-data-uri-pngs.test.js
@@ -1,11 +1,12 @@
 const fs = require("fs");
 const postcss = require("postcss");
 
-const plugin = require("./postcss-optimize-data-uri-pngs");
-
 const css = fs.readFileSync("./css/base-skin.css", "utf8");
 // This seems to timeout a lot in CI
 it.skip("does something", async () => {
+  const { default: plugin } = await import(
+    "./postcss-optimize-data-uri-pngs.mjs"
+  );
   const result = await postcss([plugin({})]).process(css);
   expect(result.css.length).toBeLessThan(css.length);
 });