diff --git a/pyproject.toml b/pyproject.toml
index ab32e17b..9ed0633a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -60,7 +60,7 @@ dev = [
     "types-toml>=0.10.8.20240310,<0.11",
     "types-tornado>=5.1.1,<6",
     "mypy>=1.15.0,<2",
-    "pytest>=8.3.5,<9",
+    "pytest>=8.3.5,<10",
     "pytest-asyncio>=0.26.0,<0.27",
     "pytest-cov>=6.1.1,<7",
     "pytest-mock>=3.14.0,<4",