diff --git a/requirements/async.txt b/requirements/async.txt
index dd105eb8b..54e62ca94 100644
--- a/requirements/async.txt
+++ b/requirements/async.txt
@@ -1,3 +1,3 @@
 # pip install -r requirements/async.txt
 aiohttp>=3,<4
-websockets<13
+websockets<14