diff --git a/aidial_client/types/metadata.py b/aidial_client/types/metadata.py
index 1591a6a..f78e04c 100644
--- a/aidial_client/types/metadata.py
+++ b/aidial_client/types/metadata.py
@@ -30,6 +30,7 @@ class FileItem(BaseMetadata):
     resource_type: Literal["FILE"]
     content_length: int | None = None
     content_type: str | None = None
+    updated_at: int | None = None
 
 
 class FileMetadata(BaseMetadata):