diff --git a/piker/data/feed.py b/piker/data/feed.py
index 2e2a63b5..1871db7d 100644
--- a/piker/data/feed.py
+++ b/piker/data/feed.py
@@ -39,7 +39,6 @@ from typing import (
     Optional,
     Awaitable,
     Sequence,
-    Union,
 )
 
 import trio