diff --git a/requirements-doc.txt b/requirements-doc.txt
index b1d575fff..0f412fdfc 100644
--- a/requirements-doc.txt
+++ b/requirements-doc.txt
@@ -13,4 +13,4 @@ lxml  # used by dataframe_image when using the matplotlib backend
 hdf5plugin
 dandi>=0.46.6
 hdmf-zarr
-zarr<2.18.0
\ No newline at end of file
+zarr<2.18.0  # limited until hdmf-zarr 0.8.0 release resolves issues with zarr>=2.18.0