diff --git a/pyproject.toml b/pyproject.toml
index 56a315f..276e208 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,7 +34,7 @@ covvfit = "covvfit.cli:main"
 optional = true
 
 [tool.poetry.group.dev.dependencies]
-pytest = "^8.3.5"
+pytest = "^9.0.3"
 ruff = "^0.1.3"
 black = "==23.12.1"
 pre-commit = "^4.2.0"