diff --git a/lib/Checkout/Session.php b/lib/Checkout/Session.php
index 1a45a241a..cbb2f32ae 100644
--- a/lib/Checkout/Session.php
+++ b/lib/Checkout/Session.php
@@ -43,6 +43,7 @@ class Session extends \Stripe\ApiResource
 {
     const OBJECT_NAME = 'checkout.session';
 
+    use \Stripe\ApiOperations\All;
     use \Stripe\ApiOperations\Create;
     use \Stripe\ApiOperations\Retrieve;
 
diff --git a/lib/Issuing/Dispute.php b/lib/Issuing/Dispute.php
index 1a60255a3..d498a3e4b 100644
--- a/lib/Issuing/Dispute.php
+++ b/lib/Issuing/Dispute.php
@@ -19,7 +19,7 @@
  * @property \Stripe\StripeObject $evidence
  * @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 \Stripe\StripeObject $metadata Set of key-value pairs that you can attach to an object. This can be useful for storing additional information about the object in a structured format.
- * @property string $reason Reason for this dispute. One of <code>fraudulent</code> or <code>other</code>.
+ * @property string $reason Reason for this dispute. One of <code>duplicate</code>, <code>product_not_received</code>, <code>fraudulent</code>, or <code>other</code>.
  * @property string $status Current status of dispute. One of <code>unsubmitted</code>, <code>under_review</code>, <code>won</code>, or <code>lost</code>.
  */
 class Dispute extends \Stripe\ApiResource