diff --git a/base/km3sim:4.10.05 b/base/km3sim:4.10.05
index 640493e62712bff90fc5cfcf4c619b41d762f95b..b3973faea9c7149cb56b6a4bbbfe602eb5fb218d 100644
--- a/base/km3sim:4.10.05
+++ b/base/km3sim:4.10.05
@@ -15,4 +15,19 @@ FROM docker.km3net.de/base/centos-full:7
     mkdir geant4.10.05_build && mkdir /usr/local/geant4.10.05_install && cd geant4.10.05_build && \
     cmake -DCMAKE_INSTALL_PREFIX=/usr/local/geant4.10.05_install -DGEANT4_USE_GDML=ON -DGEANT4_INSTALL_DATA=ON -DXERCESC_INCLUDE_DIR=/usr/include/xercesc/ -DXERCESC_LIBRARY=/usr/lib64/ ../geant4.10.05 && \
     make -j4 > make.log && make install > make_install.log && cd .. && rm -rf geant4.10.05_build geant4.10.05
- RUN echo "export G4DIR=/usr/local/geant4.10.05_install" >> /etc/bashrc
\ No newline at end of file
+ RUN echo "export G4DIR=/usr/local/geant4.10.05_install" >> /etc/bashrc
+ 
+ # ROOT6
+ RUN export ROOT_VERSION=6.14.06 && \
+     source /etc/profile.d/python36.sh && \
+     cd /tmp && \
+     wget https://root.cern.ch/download/root_v$ROOT_VERSION.source.tar.gz && \
+     tar xvzf root_v$ROOT_VERSION.source.tar.gz && \
+     cd root-$ROOT_VERSION && \
+     mkdir obj && \
+     cd obj && cmake3 .. && \
+     make && \
+     cd .. && \
+     mv obj /opt/root-$ROOT_VERSION && \
+     rm -rf /tmp/root* && \
+     echo "cd /opt/root-$ROOT_VERSION && source bin/thisroot.sh && cd" >> /etc/profile.d/root_env.sh && cd