diff --git a/packages/medusa/src/loaders/express.js b/packages/medusa/src/loaders/express.js
index abebf6b14f..8e8475afc0 100644
--- a/packages/medusa/src/loaders/express.js
+++ b/packages/medusa/src/loaders/express.js
@@ -27,6 +27,7 @@ export default async ({ app }) => {
       proxy: true,
       secret: config.cookieSecret,
       cookie: {
+        sameSite: false,
         secure: process.env.NODE_ENV === "production",
         maxAge: 10 * 60 * 60 * 1000,
       },