diff --git a/src/karl/model/webhook.py b/src/karl/model/webhook.py
index e97c073..6c941ae 100644
--- a/src/karl/model/webhook.py
+++ b/src/karl/model/webhook.py
@@ -4,8 +4,9 @@ from bubus import BaseEvent
 
 
 class WoodpeckerEvent(BaseEvent):
-  _id: str
+  _id: int
   commit: str
+  ref: str
   message: str
-  started: str
+  started: int
   files: List[str]