diff --git a/discord/types/interactions.py b/discord/types/interactions.py
index 310fb7950..5dc62ce70 100644
--- a/discord/types/interactions.py
+++ b/discord/types/interactions.py
@@ -69,8 +69,8 @@ class PartialChannel(_BasePartialChannel):
     nsfw: bool
     flags: int
     rate_limit_per_user: int
-    parent_id: Snowflake
-    last_message_id: Snowflake
+    parent_id: Optional[Snowflake]
+    last_message_id: Optional[Snowflake]
     last_pin_timestamp: NotRequired[str]