diff --git a/src/core/chat-api.ts b/src/core/chat-api.ts
index 99350598..488faea6 100644
--- a/src/core/chat-api.ts
+++ b/src/core/chat-api.ts
@@ -55,9 +55,9 @@ interface MessageOperationResponse {
   timestamp: number;
 }
 
-export type UpdateMessageResponse = MessageOperationResponse;
+type UpdateMessageResponse = MessageOperationResponse;
 
-export type DeleteMessageResponse = MessageOperationResponse;
+type DeleteMessageResponse = MessageOperationResponse;
 
 interface UpdateMessageParams {
   /**