diff --git a/README.md b/README.md
index 9ed827f..fffa84a 100644
--- a/README.md
+++ b/README.md
@@ -480,7 +480,7 @@ default.
   - `list(orderId, fulfillmentId[, params])`
   - `update(orderId, fulfillmentId, id, params)`
 - fulfillmentOrder
-  - `cancel(id, params)`
+  - `cancel(id)`
   - `close(id[, message])`
   - `fulfillments(id)`
   - `get(id)`
@@ -489,6 +489,7 @@ default.
   - `locationsForMove(id)`
   - `move(id, locationId)`
   - `releaseHold(id)`
+  - `reschedule(id, deadline)`
   - `setFulfillmentOrdersDeadline(params)`
 - fulfillmentRequest
   - `accept(fulfillmentOrderId[, message])`
diff --git a/resources/fulfillment-order.js b/resources/fulfillment-order.js
index 878609e..cd187a3 100644
--- a/resources/fulfillment-order.js
+++ b/resources/fulfillment-order.js
@@ -159,4 +159,22 @@ FulfillmentOrder.prototype.releaseHold = function releaseHold(id) {
     .then((body) => body[this.key]);
 };
 
+/**
+ * Reschedules a scheduled fulfillment order. Updates the value of the
+ * `fulfill_at field` on a scheduled fulfillment order. The fulfillment order
+ * will be marked as ready for fulfillment at this date and time.
+ *
+ * @param {Number} id Fulfillment Order ID
+ * @param {String} deadline The new fulfillment deadline of the fulfillment
+ *     order
+ * @return {Promise} Promise that resolves with the result
+ * @public
+ */
+FulfillmentOrder.prototype.reschedule = function reschedule(id, deadline) {
+  const url = this.buildUrl(`${id}/reschedule`);
+  return this.shopify.request(url, 'POST', this.key, {
+    new_fulfill_at: deadline
+  });
+};
+
 module.exports = FulfillmentOrder;
diff --git a/test/fixtures/fulfillment-order/req/index.js b/test/fixtures/fulfillment-order/req/index.js
index 6ed476d..50acf82 100644
--- a/test/fixtures/fulfillment-order/req/index.js
+++ b/test/fixtures/fulfillment-order/req/index.js
@@ -4,4 +4,5 @@ exports.cancel = require('./cancel');
 exports.close = require('./close');
 exports.hold = require('./hold');
 exports.move = require('./move');
+exports.reschedule = require('./reschedule');
 exports.setFulfillmentOrdersDeadline = require('./set-fulfillment-orders-deadline');
diff --git a/test/fixtures/fulfillment-order/req/reschedule.json b/test/fixtures/fulfillment-order/req/reschedule.json
new file mode 100644
index 0000000..cced9fc
--- /dev/null
+++ b/test/fixtures/fulfillment-order/req/reschedule.json
@@ -0,0 +1 @@
+{ "fulfillment_order": { "new_fulfill_at": "2025-08-24 10:26 UTC" } }
diff --git a/test/fixtures/fulfillment-order/res/index.js b/test/fixtures/fulfillment-order/res/index.js
index 621092d..b2cc035 100644
--- a/test/fixtures/fulfillment-order/res/index.js
+++ b/test/fixtures/fulfillment-order/res/index.js
@@ -9,3 +9,4 @@ exports.list = require('./list');
 exports.locationsForMove = require('./locations-for-move');
 exports.move = require('./move');
 exports.releaseHold = require('./release-hold');
+exports.reschedule = require('./reschedule');
diff --git a/test/fixtures/fulfillment-order/res/reschedule.json b/test/fixtures/fulfillment-order/res/reschedule.json
new file mode 100644
index 0000000..b67c40a
--- /dev/null
+++ b/test/fixtures/fulfillment-order/res/reschedule.json
@@ -0,0 +1,56 @@
+{
+  "fulfillment_order": {
+    "id": 1046000788,
+    "shop_id": 548380009,
+    "order_id": 450789469,
+    "assigned_location_id": 24826418,
+    "request_status": "unsubmitted",
+    "status": "scheduled",
+    "fulfill_at": "2025-08-24T06:26:00-04:00",
+    "supported_actions": ["mark_as_open"],
+    "destination": {
+      "id": 1046000788,
+      "address1": "Chestnut Street 92",
+      "address2": "",
+      "city": "Louisville",
+      "company": null,
+      "country": "United States",
+      "email": "bob.norman@mail.example.com",
+      "first_name": "Bob",
+      "last_name": "Norman",
+      "phone": "+1(502)-459-2181",
+      "province": "Kentucky",
+      "zip": "40202"
+    },
+    "line_items": [
+      {
+        "id": 1058737492,
+        "shop_id": 548380009,
+        "fulfillment_order_id": 1046000788,
+        "quantity": 1,
+        "line_item_id": 518995019,
+        "inventory_item_id": 49148385,
+        "fulfillable_quantity": 1,
+        "variant_id": 49148385
+      }
+    ],
+    "international_duties": null,
+    "fulfillment_holds": [],
+    "fulfill_by": null,
+    "created_at": "2024-07-24T06:26:30-04:00",
+    "updated_at": "2024-07-24T06:26:32-04:00",
+    "delivery_method": null,
+    "assigned_location": {
+      "address1": null,
+      "address2": null,
+      "city": null,
+      "country_code": "DE",
+      "location_id": 24826418,
+      "name": "Apple Api Shipwire",
+      "phone": null,
+      "province": null,
+      "zip": null
+    },
+    "merchant_requests": []
+  }
+}
diff --git a/test/fulfillment-order.test.js b/test/fulfillment-order.test.js
index f53d7d2..d38d37d 100644
--- a/test/fulfillment-order.test.js
+++ b/test/fulfillment-order.test.js
@@ -161,4 +161,19 @@ describe('Shopify#fulfillmentOrder', () => {
       expect(data).to.deep.equal(output.fulfillment_order);
     });
   });
+
+  it('reschedules the fulfill_at time of a scheduled fulfillment order', () => {
+    const input = fixtures.req.reschedule;
+    const output = fixtures.res.reschedule;
+
+    scope
+      .post('/admin/fulfillment_orders/1046000788/reschedule.json', input)
+      .reply(200, output);
+
+    return shopify.fulfillmentOrder
+      .reschedule(1046000788, '2025-08-24 10:26 UTC')
+      .then((data) => {
+        expect(data).to.deep.equal(output.fulfillment_order);
+      });
+  });
 });
diff --git a/types/index.d.ts b/types/index.d.ts
index 8078b22..0d3f77d 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -391,6 +391,10 @@ declare class Shopify {
       locationId: number
     ) => Promise<Shopify.IFulfillmentOrder>;
     releaseHold: (id: number) => Promise<Shopify.IFulfillmentOrder>;
+    reschedule: (
+      id: number,
+      deadline: string
+    ) => Promise<Shopify.IFulfillmentOrder>;
     setFulfillmentOrdersDeadline: (
       params: Shopify.ISetFulfillmentOrdersDeadline
     ) => Promise<void>;