diff --git a/paymentintent.go b/paymentintent.go
index ed41d00735..0250bae516 100644
--- a/paymentintent.go
+++ b/paymentintent.go
@@ -78,9 +78,11 @@ type PaymentIntentNextActionType string
 
 // List of values that PaymentIntentNextActionType can take
 const (
-	PaymentIntentNextActionTypeAlipayHandleRedirect PaymentIntentNextActionType = "alipay_handle_redirect"
-	PaymentIntentNextActionTypeOXXODisplayDetails   PaymentIntentNextActionType = "oxxo_display_details"
-	PaymentIntentNextActionTypeRedirectToURL        PaymentIntentNextActionType = "redirect_to_url"
+	PaymentIntentNextActionTypeAlipayHandleRedirect    PaymentIntentNextActionType = "alipay_handle_redirect"
+	PaymentIntentNextActionTypeOXXODisplayDetails      PaymentIntentNextActionType = "oxxo_display_details"
+	PaymentIntentNextActionTypeRedirectToURL           PaymentIntentNextActionType = "redirect_to_url"
+	PaymentIntentNextActionTypeUseStripeSDK            PaymentIntentNextActionType = "use_stripe_sdk"
+	PaymentIntentNextActionTypeVerifyWithMicrodeposits PaymentIntentNextActionType = "verify_with_microdeposits"
 )
 
 // The type of the microdeposit sent to the customer. Used to distinguish between different verification methods.
diff --git a/setupintent.go b/setupintent.go
index acec7618a6..da42cc51a8 100644
--- a/setupintent.go
+++ b/setupintent.go
@@ -34,7 +34,11 @@ type SetupIntentNextActionType string
 
 // List of values that SetupIntentNextActionType can take
 const (
-	SetupIntentNextActionTypeRedirectToURL SetupIntentNextActionType = "redirect_to_url"
+	SetupIntentNextActionTypeRedirectToURL           SetupIntentNextActionType = "redirect_to_url"
+	SetupIntentNextActionTypeUseStripeSDK            SetupIntentNextActionType = "use_stripe_sdk"
+	SetupIntentNextActionTypeAlipayHandleRedirect    SetupIntentNextActionType = "alipay_handle_redirect"
+	SetupIntentNextActionTypeOXXODisplayDetails      SetupIntentNextActionType = "oxxo_display_details"
+	SetupIntentNextActionTypeVerifyWithMicrodeposits SetupIntentNextActionType = "verify_with_microdeposits"
 )
 
 // The type of the microdeposit sent to the customer. Used to distinguish between different verification methods.
diff --git a/source.go b/source.go
index 885417db7e..0239f2b0be 100644
--- a/source.go
+++ b/source.go
@@ -36,6 +36,7 @@ type SourceReceiverRefundAttributesMethod string
 const (
 	SourceReceiverRefundAttributesMethodEmail  SourceReceiverRefundAttributesMethod = "email"
 	SourceReceiverRefundAttributesMethodManual SourceReceiverRefundAttributesMethod = "manual"
+	SourceReceiverRefundAttributesMethodNone   SourceReceiverRefundAttributesMethod = "none"
 )
 
 // Type of refund attribute status, one of `missing`, `requested`, or `available`.