diff --git a/base/km3sim:4.10.05 b/base/km3sim:4.10.05
index b3973faea9c7149cb56b6a4bbbfe602eb5fb218d..89a695b4058a7eff6ba29110bb5d58d7e71701f6 100644
--- a/base/km3sim:4.10.05
+++ b/base/km3sim:4.10.05
@@ -18,7 +18,7 @@ FROM docker.km3net.de/base/centos-full:7
  RUN echo "export G4DIR=/usr/local/geant4.10.05_install" >> /etc/bashrc
  
  # ROOT6
- RUN export ROOT_VERSION=6.14.06 && \
+ RUN export ROOT_VERSION=6.18.04 && \
      source /etc/profile.d/python36.sh && \
      cd /tmp && \
      wget https://root.cern.ch/download/root_v$ROOT_VERSION.source.tar.gz && \