diff --git a/.changeset/heavy-toes-remain.md b/.changeset/heavy-toes-remain.md
new file mode 100644
index 0000000000..8b46a30273
--- /dev/null
+++ b/.changeset/heavy-toes-remain.md
@@ -0,0 +1,5 @@
+---
+"@medusajs/medusa": patch
+---
+
+chore(medusa): remove empty object type for set cart's customer route
diff --git a/packages/medusa/src/api/store/carts/[id]/customer/route.ts b/packages/medusa/src/api/store/carts/[id]/customer/route.ts
index a9c66b8505..89b1e04e5e 100644
--- a/packages/medusa/src/api/store/carts/[id]/customer/route.ts
+++ b/packages/medusa/src/api/store/carts/[id]/customer/route.ts
@@ -7,11 +7,10 @@ import {
 } from "@medusajs/framework/http"
 import { Modules } from "@medusajs/framework/utils"
 import { refetchCart } from "../../helpers"
-import { StoreUpdateCartCustomerType } from "../../validators"
 import { AdditionalData } from "@medusajs/types"
 
 export const POST = async (
-  req: AuthenticatedMedusaRequest<StoreUpdateCartCustomerType & AdditionalData>,
+  req: AuthenticatedMedusaRequest<AdditionalData>,
   res: MedusaResponse<HttpTypes.StoreCartResponse>
 ) => {
   const we = req.scope.resolve(Modules.WORKFLOW_ENGINE)