1 files changed, 1 insertions, 0 deletions
diff --git a/setup.py b/setup.py
index 910831f..b8208fd 100644
--- a/setup.py
+++ b/setup.py
@@ -31,6 +31,7 @@ setup(  # Distribution meta-data
     license="MIT License",
     packages=packages,
     python_requires=">=3.5",
+    extras_require={"diagrams": ["railroad-diagrams", "jinja2"],},
     classifiers=[
         "Development Status :: 5 - Production/Stable",
         "Intended Audience :: Developers",