diff --git a/brain/pyproject.toml b/brain/pyproject.toml
index c078b0b..2f2325f 100644
--- a/brain/pyproject.toml
+++ b/brain/pyproject.toml
@@ -17,7 +17,7 @@ pytest-xdist = "^3.8.0"
 httpx = "^0.28.1"
 
 [tool.poetry.group.dev.dependencies]
-pytest = "^8.0.0"
+pytest = "^9.0.0"
 pytest-cov = "^4.1.0"
 pytest-asyncio = "^0.23.0"
 ruff = "^0.14.7"