diff --git a/proto/sentry_protos/billing/v1/services/contract/v1/endpoint_get_invoice.proto b/proto/sentry_protos/billing/v1/services/contract/v1/endpoint_get_invoice.proto
index 15bf8a8..f859be0 100644
--- a/proto/sentry_protos/billing/v1/services/contract/v1/endpoint_get_invoice.proto
+++ b/proto/sentry_protos/billing/v1/services/contract/v1/endpoint_get_invoice.proto
@@ -6,6 +6,7 @@ import "sentry_protos/billing/v1/services/contract/v1/invoice.proto";
 
 message GetInvoiceRequest {
   uint64 invoice_id = 1;
+  string invoice_guid = 2;
 }
 
 message GetInvoiceResponse {
diff --git a/rust/src/sentry_protos.billing.v1.services.contract.v1.rs b/rust/src/sentry_protos.billing.v1.services.contract.v1.rs
index 6b95a4f..1d450d4 100644
--- a/rust/src/sentry_protos.billing.v1.services.contract.v1.rs
+++ b/rust/src/sentry_protos.billing.v1.services.contract.v1.rs
@@ -495,10 +495,12 @@ pub struct Invoice {
     #[prost(string, tag = "7")]
     pub guid: ::prost::alloc::string::String,
 }
-#[derive(Clone, Copy, PartialEq, Eq, Hash, ::prost::Message)]
+#[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
 pub struct GetInvoiceRequest {
     #[prost(uint64, tag = "1")]
     pub invoice_id: u64,
+    #[prost(string, tag = "2")]
+    pub invoice_guid: ::prost::alloc::string::String,
 }
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct GetInvoiceResponse {