diff --git a/pyproject.toml b/pyproject.toml
index c6b65e7..0ecb06b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -56,7 +56,7 @@ fastapi = [
 dev = [
     "ruff>=0.12.7",
     "mypy>=1.17.1",
-    "pytest>=8.4.1",
+    "pytest>=9.1.1",
     "pytest-asyncio>=1.1.0",
     "pytest-cov>=6.2.1",
     "types-croniter>=6.0.0.20250809",