diff --git a/ci/hysop-doc-env.yaml b/ci/hysop-doc-env.yaml
index 66fa4e80b16a5c012c704b8ffddb24ebea626103..c0af1c7af99c8914c5e73cb6fb7a14ff1bbcc959 100644
--- a/ci/hysop-doc-env.yaml
+++ b/ci/hysop-doc-env.yaml
@@ -21,41 +21,6 @@ name: base
 channels:
   - conda-forge
 dependencies:
-  - python=3.12
-  - clinfo
-  - cmake
-  - cython
-  - editdistance
-  - gmpy2
-  - jsonpickle
-  - matplotlib
-  - meson
-  - meson-python # need for pip install --no-build-isolation --no-deps .
-  - mpi4py
-  - networkx
-  - ninja
-  - numba
-  - numcodecs
-  - numpy
-  - openmpi # no hack for mpi, use conda
-  - portalocker
-  - psutil
-  - py-cpuinfo
-  - pyopencl==2024.1
-  - pytest
-  - python-flint
-  - pyvis
-  - scipy
-  - sympy
-  - wheel
-  - zarr
-  - hdf5=*=mpi*
-  - h5py=*=mpi*
-  - fftw=*=mpi*
-  - tox
-  - pyfftw
-  - jupyterlab
-  - intel-opencl-rt 
   - doxygen
   - graphviz
   - sphinx
@@ -66,16 +31,6 @@ dependencies:
   - strip-hints
   - pandoc
   - antlr4-python3-runtime
-  #- ipykernel
-  - pip
+  - ipykernel
   - pip:
     - nbsphinx
-    - tee
-    - colors.py
-    - primefac 
-    - argparse_color_formatter
-    - memory-tempfile  
-channels:
-  - numba
-dependencies:
-  - llvmlite