diff --git a/packages/medusa/src/api/routes/admin/products/update-product.js b/packages/medusa/src/api/routes/admin/products/update-product.js
index 85b8f72559..9e14f43b82 100644
--- a/packages/medusa/src/api/routes/admin/products/update-product.js
+++ b/packages/medusa/src/api/routes/admin/products/update-product.js
@@ -285,6 +285,7 @@ export default async (req, res) => {
         mid_code: Validator.string().allow(null, ""),
         material: Validator.string().allow(null, ""),
         metadata: Validator.object().optional(),
+        upc: Validator.string().allow(null),
       })
       .optional(),
     metadata: Validator.object().optional(),