diff --git a/docker/dask/Dockerfile b/docker/dask/Dockerfile
index e6231ef9..1473f2e4 100644
--- a/docker/dask/Dockerfile
+++ b/docker/dask/Dockerfile
@@ -7,101 +7,6 @@ ENV LC_ALL en_US.UTF-8
 
 RUN localedef -i en_US -c -f UTF-8 en_US.UTF-8
 
-RUN yum update -y
-RUN yum install -y centos-release-scl
-RUN yum install -y sqlite-devel \
-    autoconf \
-    automake \
-    binutils \
-    bzip2-devel \
-    cfitsio-devel \
-    clang \
-    clang-devel \
-# cmake \ # Too old: 2.8 | min required 3.9
-    # Install gcc7 with devtoolset-7
-    chromium \
-    devtoolset-7 \
-    emacs \
-    fftw3-devel \
-    gcc \
-    gcc-c++ \
-    gcc-gfortran \
-    git \
-    graphviz-devel \
-    giflib-devel \
-    gsl-devel \
-    glew-devel \
-    libtiff-devel \
-    libjpeg-devel \
-    libpng-devel \
-    libSM-devel \
-    libX11-devel \
-    libXdmcp-devel \
-    libXext-devel \
-    libXft-devel \
-    libXpm-devel \
-    libXrender-devel \
-    libXt-devel \
-    libxml2-devel \
-    make \
-    mesa-libGL-devel \
-    ncurses-devel \
-    openssl-devel \
-    patch \
-    perl \
-    pcre-devel \
-    perl-ExtUtils-MakeMaker \
-    python3 \
-    python3-devel \
-    python3-pip \
-    python3-numpy \
-    readline-devel \
-    sqlite-devel \
-    sudo \
-    tar \
-    vim \
-    wget \
-    which \
-    xorg-x11-server-devel \
-    zlib-devel && \
-    yum clean all && \
-    rm -rf /var/cache/yum
-
-# Install cmake
-WORKDIR /usr/local/share
-
-RUN wget https://github.com/Kitware/CMake/releases/download/v3.21.1/cmake-3.21.1.tar.gz && \
-    tar xzvf cmake-3.21.1.tar.gz && cd cmake-3.21.1 && \
-    ./bootstrap && make && make install
-
-# Install vdt
-RUN git clone https://github.com/dpiparo/vdt.git && cd vdt \
-    && cmake . && make && make install
-
-# Install root6 with dask
-RUN mkdir root6build root6
-RUN git clone --branch distrdf-dask https://github.com/vepadulano/root.git root6source
-
-WORKDIR /usr/local/share/root6source
-
-WORKDIR /usr/local/share/root6build
-
-# Use root compiler
-# RUN cmake \
-#         -DCMAKE_INSTALL_PREFIX=/usr/local/share/root6 \
-#         -DPython3_EXECUTABLE=/usr/bin/python3 /usr/local/share/root6source
-
-# Use devtoolset-7 compiler
-RUN cmake \
-        -DCMAKE_C_COMPILER=/opt/rh/devtoolset-7/root/usr/bin/gcc \
-        -DCMAKE_CXX_COMPILER=/opt/rh/devtoolset-7/root/usr/bin/g++ \
-        -DCMAKE_INSTALL_PREFIX=/usr/local/share/root6 \
-        -DPython3_EXECUTABLE=/usr/bin/python3 \
-        /usr/local/share/root6source
-# Compile root
-RUN cmake --build . --target install -- -j8
-
-ENV PYTHONPATH=/usr/local/share/root6/lib
 
 WORKDIR /usr/local/share
 
@@ -113,23 +18,6 @@ RUN yum update -y && \
     rm -rf /var/cache/yum
 RUN npm install -g configurable-http-proxy
 
-# Dask and jupyterhub
-RUN python3 -m pip install --upgrade pip
-RUN python3 -m pip install --upgrade setuptools
-RUN python3 -m pip install dask \
-    dask_jobqueue \
-    click==7.1.2 \
-    numpy \
-    bokeh \
-    ipython \
-    jupyterhub \
-    jupyterlab \
-    notebook \
-    jupyter-server-proxy \
-    ipywidgets
-RUN python3 -m pip install "dask[dataframe]"
-RUN rm -r /root/.cache
-
 # Install oidc-agent
 RUN yum update -y && \
     yum install -y jq \
@@ -183,17 +71,6 @@ WORKDIR /root
 
 COPY htc.rc .
 
-# Install DASK jobqueue
-RUN pip3 install dask-remote-jobqueue==v0.4.8
-
-# Old approach
-# RUN python3 -m pip install dask-labextension "dask[dataframe]"
-# COPY labextension.yaml /usr/local/lib/python3.6/site-packages/dask_labextension/labextension.yaml
-RUN python3 -m pip install jupyter-packaging \
-    && git clone --branch custom_clusters https://github.com/DODAS-TS/dask-labextension.git \
-    && cd dask-labextension \
-    && python3 -m pip install .
-
 COPY spawn.sh /.init/spawn.sh
 
 RUN chmod +x /.init/spawn.sh
diff --git a/docker/dask/htc.rc b/docker/dask/htc.rc
index bb6c66ae..2e32f136 100644
--- a/docker/dask/htc.rc
+++ b/docker/dask/htc.rc
@@ -1,9 +1,9 @@
 #!/bin/bash
 
 export _condor_AUTH_SSL_CLIENT_CAFILE=$HOME/.ca.crt
-export _condor_COLLECTOR_HOST=90.147.75.109.myip.cloud.infn.it:30618
-export _condor_SCHEDD_HOST=90.147.75.109.myip.cloud.infn.it
-export _condor_SCHEDD_NAME=90.147.75.109.myip.cloud.infn.it
+#export _condor_COLLECTOR_HOST=90.147.75.109.myip.cloud.infn.it:30618
+#export _condor_SCHEDD_HOST=90.147.75.109.myip.cloud.infn.it
+#export _condor_SCHEDD_NAME=90.147.75.109.myip.cloud.infn.it
 export _condor_SEC_DEFAULT_ENCRYPTION=REQUIRED
 export _condor_SEC_CLIENT_AUTHENTICATION_METHODS=SCITOKENS
 export _condor_SCITOKENS_FILE=$HOME/.token
diff --git a/docker/dask/spawn.sh b/docker/dask/spawn.sh
index fda810b2..04c55e3d 100755
--- a/docker/dask/spawn.sh
+++ b/docker/dask/spawn.sh
@@ -17,4 +17,7 @@ while true; do
     sleep 600
 done &
 
+. /cvmfs/cms.dodas.infn.it/miniconda3/etc/profile.d/conda.sh
+export LD_LIBRARY_PATH=/cvmfs/cms.dodas.infn.it/miniconda3/envs/cms-dodas/lib/:$LD_LIBRARY_PATH
+conda activate cms-dodas
 source ~/htc.rc