diff --git a/completion.py b/completion.py
index 16f3ada55..e8484e34e 100644
--- a/completion.py
+++ b/completion.py
@@ -13,7 +13,9 @@ def branches_from_peps() -> list[str]:
     resp = urllib3.request('GET', 'https://peps.python.org/api/release-cycle.json')
     data = json.loads(resp.data)
     return [
-        branch for branch in data if data[branch]['status'] in ('bugfix', 'security')
+        branch
+        for branch, metadata in data.items()
+        if metadata['status'] in ('prerelease', 'bugfix', 'security')
     ]