diff --git a/environment.yml b/environment.yml
index abe03822a486a986ea1b509728f75151b643f1a9..37d3a67fdc3eafc59c814eaf1f8e6beffd731ebf 100644
--- a/environment.yml
+++ b/environment.yml
@@ -16,18 +16,18 @@ dependencies:
   - fsspec
   - zarr
   - s3fs
-  #- intake-xarray
+  - intake-xarray
   - cfgrib
-  #- pydap
-  #- cftime
+  - pydap
   - h5netcdf
-  - netcdf4#==1.5.1  # see https://github.com/pydata/xarray/issues/4925
+  # - netcdf4#==1.5.1  # see https://github.com/pydata/xarray/issues/4925
   - pip
   - pip:
     - climetlab
     - climetlab_s2s_ai_challenge
     - configargparse # for weatherbench
     - rechunker
+    - netcdf4==1.5.1  # see https://github.com/pydata/xarray/issues/4925
     # - git+https://github.com/xarray-contrib/xskillscore.git
     - git+https://github.com/phausamann/sklearn-xarray.git@develop
     #- dask-labextension