diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index a0c8c3e1..7443ba28 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "5.16.0"
+  ".": "5.17.0"
 }
diff --git a/.stats.yml b/.stats.yml
index 3407ffd1..32f63a30 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 118
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/orb%2Forb-b070c1d97a6e3b400f43d2bce36c22ed89d432345b26374728c55dd0a20f0afa.yml
-openapi_spec_hash: dba4ff52c381cda6159fc56d8b77eb32
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/orb%2Forb-15e42bc01739abea4a925894a1a7de447de40b003a3433461952e8e06919588b.yml
+openapi_spec_hash: 8a0bc5b6ab417f7256cbf83d70c459a3
 config_hash: 1f73a949b649ecfe6ec68ba1bb459dc2
diff --git a/CHANGELOG.md b/CHANGELOG.md
index fb24fe39..59bf8e04 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 5.17.0 (2025-10-10)
+
+Full Changelog: [v5.16.0...v5.17.0](https://github.com/orbcorp/orb-node/compare/v5.16.0...v5.17.0)
+
+### Features
+
+* **api:** api update ([e8f7516](https://github.com/orbcorp/orb-node/commit/e8f7516e596c23f8d54b36bdc646e25860ce14c2))
+
 ## 5.16.0 (2025-10-07)
 
 Full Changelog: [v5.15.0...v5.16.0](https://github.com/orbcorp/orb-node/compare/v5.15.0...v5.16.0)
diff --git a/package.json b/package.json
index 03cae95d..5321f9ea 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "orb-billing",
-  "version": "5.16.0",
+  "version": "5.17.0",
   "description": "The official TypeScript library for the Orb API",
   "author": "Orb <team@withorb.com>",
   "types": "dist/index.d.ts",
diff --git a/src/resources/invoice-line-items.ts b/src/resources/invoice-line-items.ts
index d4eec3c9..4f7b4ea7 100644
--- a/src/resources/invoice-line-items.ts
+++ b/src/resources/invoice-line-items.ts
@@ -8,6 +8,17 @@ export class InvoiceLineItems extends APIResource {
   /**
    * This creates a one-off fixed fee invoice line item on an Invoice. This can only
    * be done for invoices that are in a `draft` status.
+   *
+   * The behavior depends on which parameters are provided:
+   *
+   * - If `item_id` is provided without `name`: The item is looked up by ID, and the
+   *   item's name is used for the line item.
+   * - If `name` is provided without `item_id`: An item with the given name is
+   *   searched for in the account. If found, that item is used. If not found, a new
+   *   item is created with that name. The new item's name is used for the line item.
+   * - If both `item_id` and `name` are provided: The item is looked up by ID for
+   *   association, but the provided `name` is used for the line item (not the item's
+   *   name).
    */
   create(
     body: InvoiceLineItemCreateParams,
@@ -168,12 +179,6 @@ export interface InvoiceLineItemCreateParams {
    */
   invoice_id: string;
 
-  /**
-   * The item name associated with this line item. If an item with the same name
-   * exists in Orb, that item will be associated with the line item.
-   */
-  name: string;
-
   /**
    * The number of units on the line item
    */
@@ -183,6 +188,24 @@ export interface InvoiceLineItemCreateParams {
    * A date string to specify the line item's start date in the customer's timezone.
    */
   start_date: string;
+
+  /**
+   * The id of the item to associate with this line item. If provided without `name`,
+   * the item's name will be used for the price/line item. If provided with `name`,
+   * the item will be associated but `name` will be used for the line item. At least
+   * one of `name` or `item_id` must be provided.
+   */
+  item_id?: string | null;
+
+  /**
+   * The name to use for the line item. If `item_id` is not provided, Orb will search
+   * for an item with this name. If found, that item will be associated with the line
+   * item. If not found, a new item will be created with this name. If `item_id` is
+   * provided, this name will be used for the line item, but the item association
+   * will be based on `item_id`. At least one of `name` or `item_id` must be
+   * provided.
+   */
+  name?: string | null;
 }
 
 export declare namespace InvoiceLineItems {
diff --git a/src/version.ts b/src/version.ts
index cf8aa541..02ab094c 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const VERSION = '5.16.0'; // x-release-please-version
+export const VERSION = '5.17.0'; // x-release-please-version
diff --git a/tests/api-resources/invoice-line-items.test.ts b/tests/api-resources/invoice-line-items.test.ts
index fbc09e3d..93b87792 100644
--- a/tests/api-resources/invoice-line-items.test.ts
+++ b/tests/api-resources/invoice-line-items.test.ts
@@ -14,7 +14,6 @@ describe('resource invoiceLineItems', () => {
       amount: '12.00',
       end_date: '2023-09-22',
       invoice_id: '4khy3nwzktxv7',
-      name: 'Item Name',
       quantity: 1,
       start_date: '2023-09-22',
     });
@@ -32,9 +31,10 @@ describe('resource invoiceLineItems', () => {
       amount: '12.00',
       end_date: '2023-09-22',
       invoice_id: '4khy3nwzktxv7',
-      name: 'Item Name',
       quantity: 1,
       start_date: '2023-09-22',
+      item_id: '4khy3nwzktxv7',
+      name: 'Item Name',
     });
   });
 });