diff --git a/setup.py b/setup.py
index a639d05..53a1448 100644
--- a/setup.py
+++ b/setup.py
@@ -33,6 +33,7 @@
     include_package_data=True,
     python_requires=">=3.8",
     install_requires=["tutor>=16.0.0,<17.0.0"],
+    extras_require={"dev": ["tutor[dev]>=16.0.0,<17.0.0"]},
     entry_points={"tutor.plugin.v1": ["notes = tutornotes.plugin"]},
     classifiers=[
         "Development Status :: 5 - Production/Stable",