diff --git a/pyproject.toml b/pyproject.toml
index f5fcb6025434ae3523a3cdcdc045ec3b5128f5aa..6d0d765b85dc863b6ed19ab2a55db04594da617b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -57,6 +57,11 @@ fortran = [
     "f2py @ git+https://github.com/pearu/f2py.git",
     "ply>=3.6",
 ]
+dev = [
+    "mypy",
+    "types-colorama",
+    "types-Pygments",
+]
 
 [tool.hatch.metadata]
 allow-direct-references = true