diff --git a/pyproject.toml b/pyproject.toml
index ad899e2..045d12a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,6 +39,9 @@ build-backend = "setuptools.build_meta"
 
 [project.optional-dependencies]
 dev = [
+    "mkdocs>=1.6",
+    "mkdocs-material>=9.6",
+    "sendria>=2.2",
     "pytest>=7,<8",
     "pip-tools>=6,<7",
     "pytest-isort>=3,<4",