diff --git a/setup.py b/setup.py
index 98a9e9e54..8619d666a 100644
--- a/setup.py
+++ b/setup.py
@@ -32,6 +32,7 @@
     package_dir={"": "src"},
     include_package_data=True,  # Includes files described in MANIFEST.in in the installation
     install_requires=install_requires,
+    # zarr<2.18.0 because of https://github.com/NeurodataWithoutBorders/nwbinspector/pull/460
     extras_require=dict(dandi=["dandi>=0.39.2", "zarr<2.18.0"], zarr=["hdmf_zarr>=0.3.0", "zarr<2.18.0"]),
     entry_points={"console_scripts": ["nwbinspector=nwbinspector.nwbinspector:inspect_all_cli"]},
     license="BSD-3-Clause",