diff --git a/pyproject.toml b/pyproject.toml
index 3cd65505..dbc5d1a9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,7 +49,7 @@ docs = [
     "sphinx==8.1.3",
 ]
 dev = ["pre-commit>=2.12.1", "typing_extensions; python_version < '3.11'"]
-tests = ["moto==5.2.2", "pytest-cov==7.1.0", "pytest==9.1.0"]
+tests = ["moto==5.2.2", "pytest-cov==7.1.0", "pytest==9.1.1"]
 vis = ["matplotlib", "pydot"]
 fireworks = ["FireWorks"]
 strict = [