diff --git a/setup.py b/setup.py
index 6c75039..e9bd8ae 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@
             'mypy==1.14.1',
             'pytest>=8,<9',
             'pytest-cov>=5,<6',
-            'pytest-asyncio==0.*',
+            'pytest-asyncio==1.*',
             'ruff==0.5.5',
             'types-pyserial',
         ]