diff --git a/src/objects.rs b/src/objects.rs
index 6dd6c00..db69e62 100644
--- a/src/objects.rs
+++ b/src/objects.rs
@@ -2264,6 +2264,7 @@ pub struct AffiliateInfo {
 
 #[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
 #[serde(tag = "type", rename_all = "snake_case")]
+#[non_exhaustive]
 pub enum TransactionPartner {
     User(Box<TransactionPartnerUser>),
     AffiliateProgram(TransactionPartnerAffiliateProgram),