diff --git a/main-site/server.js b/main-site/server.js
index 10e0b5e..c1b47b0 100644
--- a/main-site/server.js
+++ b/main-site/server.js
@@ -11,7 +11,7 @@ const cors = require('cors');
 const multer = require('multer');
 const sharp = require('sharp');
 const nodemailer = require('nodemailer');
-const { createChallenge, verifySolution, sha: altchaSha } = require('altcha/dist/lib/index.umd.cjs');
+const { createChallenge, verifySolution, sha: altchaSha } = require('altcha/lib');
 
 const app = express();
 const port = 3050;