diff --git a/binder/environment.yml b/binder/environment.yml
index 89dbcc4..b5295a1 100644
--- a/binder/environment.yml
+++ b/binder/environment.yml
@@ -8,6 +8,8 @@ dependencies:
   - jupyter_server=1.23.6  # known working with old jupyterhub-singleuser
   - jupyterhub-singleuser=1.3.0  # match JupyterHub deployment version
   - jupyterlab-h5web=8.*  # pinned to 8 while jupyterlab=3 is used
+  - hdf5-external-filter-plugins
+  - blosc-hdf5-plugin
   - jupyterlab=3.*
   - nbconvert-webpdf
   - nbgitpuller