diff --git a/pymongo/_version.py b/pymongo/_version.py
index 9f31caa89..b2ee20302 100644
--- a/pymongo/_version.py
+++ b/pymongo/_version.py
@@ -17,7 +17,7 @@ from __future__ import annotations
 
 from typing import Tuple, Union
 
-version_tuple: Tuple[Union[int, str], ...] = (4, 7, 0)
+version_tuple: Tuple[Union[int, str], ...] = (4, 8, 0, '.dev0')
 
 
 def get_version_string() -> str: