diff --git a/lib/BankAccount.php b/lib/BankAccount.php
index 019a4d87c..3fdc9188c 100644
--- a/lib/BankAccount.php
+++ b/lib/BankAccount.php
@@ -31,6 +31,16 @@ class BankAccount extends ApiResource
     use ApiOperations\Delete;
     use ApiOperations\Update;
 
+    /**
+     * Possible string representations of the bank verification status.
+     * @link https://stripe.com/docs/api/external_account_bank_accounts/object#account_bank_account_object-status
+     */
+    const STATUS_NEW                 = 'new';
+    const STATUS_VALIDATED           = 'validated';
+    const STATUS_VERIFIED            = 'verified';
+    const STATUS_VERIFICATION_FAILED = 'verification_failed';
+    const STATUS_ERRORED             = 'errored';
+
     /**
      * @return string The instance URL for this resource. It needs to be special
      *    cased because it doesn't fit into the standard resource pattern.
diff --git a/lib/Charge.php b/lib/Charge.php
index 832a07c7c..43274c555 100644
--- a/lib/Charge.php
+++ b/lib/Charge.php
@@ -11,7 +11,9 @@
  * @property int $amount_refunded
  * @property string $application
  * @property string $application_fee
+ * @property int $application_fee_amount
  * @property string $balance_transaction
+ * @property mixed $billing_details
  * @property bool $captured
  * @property int $created
  * @property string $currency
@@ -30,6 +32,8 @@
  * @property mixed $outcome
  * @property bool $paid
  * @property string $payment_intent
+ * @property string $payment_method
+ * @property mixed $payment_method_details
  * @property string $receipt_email
  * @property string $receipt_number
  * @property string $receipt_url
@@ -86,6 +90,7 @@ class Charge extends ApiResource
     const DECLINED_INVALID_PIN                       = 'invalid_pin';
     const DECLINED_ISSUER_NOT_AVAILABLE              = 'issuer_not_available';
     const DECLINED_LOST_CARD                         = 'lost_card';
+    const DECLINED_MERCHANT_BLACKLIST                = 'merchant_blacklist';
     const DECLINED_NEW_ACCOUNT_INFORMATION_AVAILABLE = 'new_account_information_available';
     const DECLINED_NO_ACTION_TAKEN                   = 'no_action_taken';
     const DECLINED_NOT_PERMITTED                     = 'not_permitted';
diff --git a/lib/Customer.php b/lib/Customer.php
index 44f5e6e2f..acb5c3131 100644
--- a/lib/Customer.php
+++ b/lib/Customer.php
@@ -26,6 +26,7 @@
  * @property mixed $shipping
  * @property Collection $sources
  * @property Collection $subscriptions
+ * @property string $tax_exempt
  * @property Collection $tax_ids
  *
  * @package Stripe
diff --git a/lib/Invoice.php b/lib/Invoice.php
index 6e0ec9d6b..1ef9035ff 100644
--- a/lib/Invoice.php
+++ b/lib/Invoice.php
@@ -19,6 +19,7 @@
  * @property string $billing
  * @property string $billing_reason
  * @property string $charge
+ * @property string $collection_method
  * @property int $created
  * @property string $currency
  * @property array $custom_fields
@@ -28,6 +29,7 @@
  * @property string $customer_name
  * @property string $customer_phone
  * @property mixed $customer_shipping
+ * @property string $customer_tax_exempt
  * @property array $customer_tax_ids
  * @property string $default_payment_method
  * @property string $default_source
diff --git a/lib/Order.php b/lib/Order.php
index 06c4ad346..0688c6ef9 100644
--- a/lib/Order.php
+++ b/lib/Order.php
@@ -23,7 +23,7 @@
  * @property Collection $returns
  * @property string $selected_shipping_method
  * @property mixed $shipping
- * @property mixed $shipping_methods
+ * @property array $shipping_methods
  * @property string $status
  * @property mixed $status_transitions
  * @property int $updated
diff --git a/lib/Person.php b/lib/Person.php
index 56241c4c4..f79b80da0 100644
--- a/lib/Person.php
+++ b/lib/Person.php
@@ -45,7 +45,7 @@ class Person extends ApiResource
      * Possible string representations of a person's gender.
      * @link https://stripe.com/docs/api/persons/object#person_object-gender
      */
-    const GENDER_MALE = 'male';
+    const GENDER_MALE   = 'male';
     const GENDER_FEMALE = 'female';
 
     /**
diff --git a/lib/Source.php b/lib/Source.php
index 31b7cf77b..1e2c8c735 100644
--- a/lib/Source.php
+++ b/lib/Source.php
@@ -18,6 +18,7 @@
  * @property mixed $code_verification
  * @property int $created
  * @property string $currency
+ * @property string $customer
  * @property mixed $eps
  * @property string $flow
  * @property mixed $giropay
diff --git a/lib/Subscription.php b/lib/Subscription.php
index 8b57d46b6..f5a46171d 100644
--- a/lib/Subscription.php
+++ b/lib/Subscription.php
@@ -13,6 +13,7 @@
  * @property mixed $billing_thresholds
  * @property bool $cancel_at_period_end
  * @property int $canceled_at
+ * @property string $collection_method
  * @property int $created
  * @property int $current_period_end
  * @property int $current_period_start
@@ -31,6 +32,7 @@
  * @property int $quantity
  * @property SubscriptionSchedule $schedule
  * @property int $start
+ * @property int $start_date
  * @property string $status
  * @property float $tax_percent
  * @property int $trial_end
diff --git a/lib/TaxId.php b/lib/TaxId.php
index 2993e2d13..67dd9a323 100644
--- a/lib/TaxId.php
+++ b/lib/TaxId.php
@@ -12,7 +12,6 @@
  * @property string $country
  * @property int $created
  * @property string $customer
- * @property bool $deleted
  * @property bool $livemode
  * @property string $type
  * @property string $value