diff --git a/pyproject.toml b/pyproject.toml
index 0c8eafd3b..2651d29e3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ dev = [
   "mypy>=1.17.1,<2.0.0",
   "openapi-spec-validator>=0.7.2,<1.0.0",
   "prance>=23.6.21,<26.0.0",
-  "pytest>=8.4.1,<9.0.0",
+  "pytest>=8.4.1,<10.0.0",
   "pytest-asyncio>=1.1.0,<2.0.0",
   "pytest-cov>=6.2.1,<8.0.0",
   "pytest-rerunfailures>=14.0,<15.0",