diff --git a/dch_webhooks.py b/dch_webhooks.py
index 69816b0..3b9037b 100644
--- a/dch_webhooks.py
+++ b/dch_webhooks.py
@@ -317,14 +317,16 @@ async def ntfy(
     tags: Optional[str] = None,
     attach: Optional[bytes] = None,
     filename: Optional[str] = None,
+    cache: Optional[bool] = None,
 ) -> None:
     assert message or attach
-    headers = {
-    }
+    headers = {}
     if title:
         headers['Title'] = title
     if tags:
         headers['Tags'] = tags
+    if cache is not None:
+        headers['Cache'] = 'yes' if cache else 'no'
     url = f'{NTFY_URL}/{topic}'
     client = httpx.AsyncClient()
     if attach:
@@ -422,6 +424,6 @@ async def jenkins_notify(request: fastapi.Request) -> None:
         return
 
     try:
-        await ntfy(message, 'jenkins', title, tag)
+        await ntfy(message, 'jenkins', title, tag, cache=False)
     except httpx.HTTPError:
         log.exception('Failed to send notification:')