diff --git a/pyproject.toml b/pyproject.toml
index f1e254e9..946f7359 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -209,6 +209,11 @@ cov = [
   "cov-report",
 ]
 
+[tool.hatch.envs.types]
+dependencies = ["mypy>=1.0.0"]
+[tool.hatch.envs.types.scripts]
+check = "mypy --install-types --non-interactive {args:medkit}"
+
 [tool.hatch.envs.docs]
 features = [
   "deid",
@@ -240,6 +245,12 @@ exclude_lines = [
   "if TYPE_CHECKING:",
 ]
 
+[tool.mypy]
+disable_error_code = ["import-not-found", "import-untyped"]
+warn_unused_configs = true
+warn_redundant_casts = true
+warn_unused_ignores = true
+
 [tool.ruff]
 line-length = 120
 indent-width = 4