diff --git a/pyproject.toml b/pyproject.toml
index cbc1af3..eb9e5d3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ dev = [
   "httpx>=0.27,<1",
   "mypy>=1.11,<2",
   "pre-commit>=3.8,<5",
-  "pytest>=8.3,<9",
+  "pytest>=8.3,<10",
   "pytest-cov>=5,<7",
   "ruff>=0.6,<1",
   "types-PyYAML>=6.0.12",