diff --git a/src/neuroconv/datainterfaces/ecephys/maxwell/requirements.txt b/src/neuroconv/datainterfaces/ecephys/maxwell/requirements.txt
new file mode 100644
index 000000000..d7b53e65f
--- /dev/null
+++ b/src/neuroconv/datainterfaces/ecephys/maxwell/requirements.txt
@@ -0,0 +1 @@
+h5py<=3.9.0