diff --git a/environment.yml b/environment.yml
index 90da63b..9096650 100644
--- a/environment.yml
+++ b/environment.yml
@@ -21,12 +21,14 @@ dependencies:
 - fsspec
 - geopandas
 - joblib
+- jupyter-book
 - jupyter-server-proxy
 - jupyterlab
 - jupyterlab-myst
 - libnetcdf
 - matplotlib
 - nbconvert
+- nbformat
 - nc-time-axis
 - netCDF4
 - numpy < 2.0.0