Dockerfile struggling to install Python Geopandas module

I have a dockerfile in which I am trying to build a container with my required python modules from.

See my dockerfile below to understand how and what modules I am trying to install:

FROM ubuntu:bionic

ENV ROOTDIR /usr/local/
ENV GDAL_VERSION 2.4.1
ENV OPENJPEG_VERSION 2.3.0
ENV CURL_CA_BUNDLE /etc/ssl/certs/ca-certificates.crt

# Load assets
WORKDIR $ROOTDIR/

ADD http://download.osgeo.org/gdal/${GDAL_VERSION}/gdal-${GDAL_VERSION}.tar.gz $ROOTDIR/src/
ADD https://github.com/uclouvain/openjpeg/archive/v${OPENJPEG_VERSION}.tar.gz $ROOTDIR/src/openjpeg-${OPENJPEG_VERSION}.tar.gz

# Install basic dependencies
RUN apt-get update -y && apt-get install -y 
    software-properties-common 
    build-essential 
    python-dev 
    python3-dev 
    python-numpy 
    python3-numpy 
    python3-pyproj 
    libspatialite-dev 
    sqlite3 
    libpq-dev 
    libcurl4-gnutls-dev 
    libproj-dev 
    libxml2-dev 
    libgeos-dev 
    libnetcdf-dev 
    libpoppler-dev 
    libspatialite-dev 
    libhdf4-alt-dev 
    libhdf5-serial-dev 
    bash-completion 
    cython 
    cmake

# Compile and install OpenJPEG
RUN cd src && tar -xvf openjpeg-${OPENJPEG_VERSION}.tar.gz && cd openjpeg-${OPENJPEG_VERSION}/ 
    && mkdir build && cd build 
    && cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$ROOTDIR 
    && make && make install && make clean 
    && cd $ROOTDIR && rm -Rf src/openjpeg*

# Compile and install GDAL
RUN cd src && tar -xvf gdal-${GDAL_VERSION}.tar.gz && cd gdal-${GDAL_VERSION} 
    && ./configure --with-python --with-spatialite --with-pg --with-curl --with-openjpeg 
    && make -j $(nproc) && make install && ldconfig 
    && apt-get update -y 
    && cd $ROOTDIR && cd src/gdal-${GDAL_VERSION}/swig/python 
    && python3 setup.py build 
    && python3 setup.py install 
    && apt-get remove -y --purge build-essential 
      python-dev 
      python3-dev 
    && cd $ROOTDIR && rm -Rf src/gdal*


# install Vim
RUN apt-get -y install vim

# Install Pip3 and required python modules
RUN apt-get -y install python3-pip

RUN pip3 install rasterio &&
    pip3 install rdp &&
    pip3 install gdal2tiles&&
    pip3 install awscli &&
    pip3 install pandas &&
    pip3 install boto3 &&
    pip3 install requests &&
    pip3 install shapely &&
    pip3 install geopandas &&   
    pip3 install math 

However, it seems to get as far as the geopandas module and then I hit this error:

Collecting pyproj>=2.2.0 (from geopandas)
  Downloading https://files.pythonhosted.org/packages/2c/12/7a8cca32506747c05ffd5c6ba556cf8435754af0939906cbcc7fa5802ea3/pyproj-3.0.1.tar.gz (168kB)
    Complete output from command python setup.py egg_info:
    ERROR: Cython.Build.cythonize not found. Cython is required to build pyproj.

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-vtfufrfs/pyproj/

Has anyone any ideas on how to overcome this?