diff --git a/aiohttp/__init__.py b/aiohttp/__init__.py
index a65b3987222..b65dd45000b 100644
--- a/aiohttp/__init__.py
+++ b/aiohttp/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "3.10.9"
+__version__ = "3.10.10.dev0"
 
 from typing import TYPE_CHECKING, Tuple