diff --git a/redis/asyncio/connection.py b/redis/asyncio/connection.py
index c79ed690d9..b819836af6 100644
--- a/redis/asyncio/connection.py
+++ b/redis/asyncio/connection.py
@@ -1356,7 +1356,7 @@ class BlockingConnectionPool(ConnectionPool):
     def __init__(
         self,
         max_connections: int = 50,
-        timeout: Optional[int] = 20,
+        timeout: Optional[float] = 20,
         connection_class: Type[AbstractConnection] = Connection,
         queue_class: Type[asyncio.Queue] = asyncio.LifoQueue,  # deprecated
         **connection_kwargs,