diff --git a/CDash_Env_MpdRoot.sh b/CDash_Env_MpdRoot.sh
index 74ff54ae441f05fcbe145f282875636e9090e8a7..404163c1d98ee0dcf88f566e4a02d7308dafd78e 100644
--- a/CDash_Env_MpdRoot.sh
+++ b/CDash_Env_MpdRoot.sh
@@ -10,13 +10,13 @@ export SIMPATH=/opt/fairsoft/install
 export SOURCEDIR=$CDASHUSERPATH
 export BUILDDIR=$HOME/CDASH/mpdroot_build_$(uname -n)
 export LINUX_FLAVOUR=$(uname -o)
-export FAIRSOFT_VERSION=apr13
+export FAIRSOFT_VERSION=may16
 
 if [ "$#" -gt "1" ]; then
 if [ "$#" -gt "2" ]; then
 export FAIRSOFT_VERSION=$3
 else
-export FAIRSOFT_VERSION=apr13
+export FAIRSOFT_VERSION=may16
 fi
 export BUILDDIR=$2
 fi