diff --git a/OPENAPI_VERSION b/OPENAPI_VERSION
index e86d803f6..c2f1f3583 100644
--- a/OPENAPI_VERSION
+++ b/OPENAPI_VERSION
@@ -1 +1 @@
-v832
\ No newline at end of file
+v833
\ No newline at end of file
diff --git a/lib/InvoiceLineItem.php b/lib/InvoiceLineItem.php
index ba4ce3dd5..15eb3212c 100644
--- a/lib/InvoiceLineItem.php
+++ b/lib/InvoiceLineItem.php
@@ -34,4 +34,6 @@
 class InvoiceLineItem extends ApiResource
 {
     const OBJECT_NAME = 'line_item';
+
+    use ApiOperations\Update;
 }
diff --git a/lib/Service/InvoiceService.php b/lib/Service/InvoiceService.php
index 6bd77a287..11bb869e0 100644
--- a/lib/Service/InvoiceService.php
+++ b/lib/Service/InvoiceService.php
@@ -275,6 +275,28 @@ public function update($id, $params = null, $opts = null)
         return $this->request('post', $this->buildPath('/v1/invoices/%s', $id), $params, $opts);
     }
 
+    /**
+     * Updates an invoice’s line item. Some fields, such as <code>tax_amounts</code>,
+     * only live on the invoice line item, so they can only be updated through this
+     * endpoint. Other fields, such as <code>amount</code>, live on both the invoice
+     * item and the invoice line item, so updates on this endpoint will propagate to
+     * the invoice item as well. Updating an invoice’s line item is only possible
+     * before the invoice is finalized.
+     *
+     * @param string $parentId
+     * @param string $id
+     * @param null|array $params
+     * @param null|RequestOptionsArray|\Stripe\Util\RequestOptions $opts
+     *
+     * @throws \Stripe\Exception\ApiErrorException if the request fails
+     *
+     * @return \Stripe\InvoiceLineItem
+     */
+    public function updateLine($parentId, $id, $params = null, $opts = null)
+    {
+        return $this->request('post', $this->buildPath('/v1/invoices/%s/lines/%s', $parentId, $id), $params, $opts);
+    }
+
     /**
      * Mark a finalized invoice as void. This cannot be undone. Voiding an invoice is
      * similar to <a href="#delete_invoice">deletion</a>, however it only applies to