diff --git a/setup.py b/setup.py
index 6c75039..2fd14e8 100644
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,7 @@
 
         'test': [
             'mypy==1.14.1',
-            'pytest>=8,<9',
+            'pytest>=9,<10',
             'pytest-cov>=5,<6',
             'pytest-asyncio==0.*',
             'ruff==0.5.5',