diff --git a/environment.yml b/environment.yml
index f5f474cf3ca108a0ba52b101cf3192e23e6c3178..0076929a3b3aa397c72554b48f7dd903f1fd186a 100644
--- a/environment.yml
+++ b/environment.yml
@@ -15,6 +15,7 @@ dependencies:
   - statsmodels
     # data I/O
   - cdo
+  - python-cdo
   - xarray
   - dask
   - gdal