diff --git a/.changeset/pink-sites-visit.md b/.changeset/pink-sites-visit.md
new file mode 100644
index 0000000000..eee95e6324
--- /dev/null
+++ b/.changeset/pink-sites-visit.md
@@ -0,0 +1,7 @@
+---
+"@medusajs/js-sdk": patch
+"@medusajs/types": patch
+"@medusajs/medusa": patch
+---
+
+fix(js-sdk,types,medusa): add HTTP types for update order change API route
diff --git a/packages/core/js-sdk/src/admin/order.ts b/packages/core/js-sdk/src/admin/order.ts
index 63ae9ce5e2..969bd8c602 100644
--- a/packages/core/js-sdk/src/admin/order.ts
+++ b/packages/core/js-sdk/src/admin/order.ts
@@ -638,6 +638,8 @@ export class Order {
    * This method updates an order change. It sends a request to the
    * [Update Order Change](https://docs.medusajs.com/api/admin#order-changes_postorder-changesid)
    * API route.
+   * 
+   * @since v2.11.4
    *
    * @param id - The order change's ID.
    * @param body - The update details.
@@ -658,8 +660,8 @@ export class Order {
    */
   async updateOrderChange(
     id: string,
-    body: { carry_over_promotions: boolean },
-    query?: SelectParams,
+    body: HttpTypes.AdminUpdateOrderChange,
+    query?: HttpTypes.AdminOrderChangesFilters,
     headers?: ClientHeaders
   ) {
     return await this.client.fetch<HttpTypes.AdminOrderChangeResponse>(
diff --git a/packages/core/types/src/http/order/admin/payload.ts b/packages/core/types/src/http/order/admin/payload.ts
index 83675df2cf..9f60f9a851 100644
--- a/packages/core/types/src/http/order/admin/payload.ts
+++ b/packages/core/types/src/http/order/admin/payload.ts
@@ -188,4 +188,11 @@ export interface AdminCreateOrderCreditLine {
    * Key-value pairs of custom data.
    */
   metadata?: Record<string, unknown> | null
+}
+
+export interface AdminUpdateOrderChange {
+  /**
+   * Whether to carry over promotions to outbound exchange items.
+   */
+  carry_over_promotions?: boolean
 }
\ No newline at end of file
diff --git a/packages/medusa/src/api/admin/order-changes/[id]/route.ts b/packages/medusa/src/api/admin/order-changes/[id]/route.ts
index 5e9c571685..186bef23a4 100644
--- a/packages/medusa/src/api/admin/order-changes/[id]/route.ts
+++ b/packages/medusa/src/api/admin/order-changes/[id]/route.ts
@@ -4,11 +4,16 @@ import {
   AuthenticatedMedusaRequest,
   MedusaResponse,
 } from "@medusajs/framework/http"
-import { AdminPostOrderChangesReqSchemaType } from "../validators"
 import { ContainerRegistrationKeys } from "@medusajs/framework/utils"
 
+/**
+ * @since v2.11.4
+ */
 export const POST = async (
-  req: AuthenticatedMedusaRequest<AdminPostOrderChangesReqSchemaType>,
+  req: AuthenticatedMedusaRequest<
+    HttpTypes.AdminUpdateOrderChange,
+    HttpTypes.AdminOrderChangesFilters
+  >,
   res: MedusaResponse<HttpTypes.AdminOrderChangeResponse>
 ) => {
   const { id } = req.params