diff --git a/scripts/utils/createJestConfig.js b/scripts/utils/createJestConfig.js
index aa84d7637ff..e884518d73a 100644
--- a/scripts/utils/createJestConfig.js
+++ b/scripts/utils/createJestConfig.js
@@ -53,12 +53,12 @@ module.exports = (resolve, rootDir, srcRoots) => {
     },
     moduleFileExtensions: [
       'web.js',
-      'mjs',
       'js',
       'json',
       'web.jsx',
       'jsx',
       'node',
+      'mjs',
     ],
   };
   if (rootDir) {