diff --git a/requirements/async.txt b/requirements/async.txt
index 54e62ca94..cd9c368f6 100644
--- a/requirements/async.txt
+++ b/requirements/async.txt
@@ -1,3 +1,3 @@
 # pip install -r requirements/async.txt
 aiohttp>=3,<4
-websockets<14
+websockets<15