diff --git a/OPENAPI_VERSION b/OPENAPI_VERSION
index 0b3f04f2a..2b3b8788c 100644
--- a/OPENAPI_VERSION
+++ b/OPENAPI_VERSION
@@ -1 +1 @@
-v311
\ No newline at end of file
+v313
\ No newline at end of file
diff --git a/lib/TaxRate.php b/lib/TaxRate.php
index d083dac31..acf7b9ba3 100644
--- a/lib/TaxRate.php
+++ b/lib/TaxRate.php
@@ -26,7 +26,7 @@
  * @property null|string $jurisdiction The jurisdiction for the tax rate. You can use this label field for tax reporting purposes. It also appears on your customer’s invoice.
  * @property bool $livemode Has the value <code>true</code> if the object exists in live mode or the value <code>false</code> if the object exists in test mode.
  * @property null|\Stripe\StripeObject $metadata Set of <a href="https://stripe.com/docs/api/metadata">key-value pairs</a> that you can attach to an object. This can be useful for storing additional information about the object in a structured format.
- * @property float $percentage This represents the tax rate percent out of 100.
+ * @property float $percentage Tax rate percentage out of 100. For tax calculations with automatic_tax[enabled]=true, this percentage includes the statutory tax rate of non-taxable jurisdictions.
  * @property null|string $state <a href="https://en.wikipedia.org/wiki/ISO_3166-2:US">ISO 3166-2 subdivision code</a>, without country prefix. For example, &quot;NY&quot; for New York, United States.
  * @property null|string $tax_type The high-level tax type, such as <code>vat</code> or <code>sales_tax</code>.
  */