diff --git a/pyproject.toml b/pyproject.toml
index 498f21b..3212b77 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,6 +40,9 @@ line-length = 88
 
 [tool.ruff.format]
 quote-style = "single"
+
+[tool.mypy]
+strict = true
 [build-system]
 requires = ["poetry-core"]
 build-backend = "poetry.core.masonry.api"