diff --git a/etc/vagrant/bootstrap.sh b/etc/vagrant/bootstrap.sh
index 385dee1ddd74528212e86f5320ad67b7a31fc321..f1c8e77d3d2eca7fb688f70ad6a15adf00306f77 100644
--- a/etc/vagrant/bootstrap.sh
+++ b/etc/vagrant/bootstrap.sh
@@ -57,7 +57,7 @@ INSTALL_ISOCHRONE_LOCAL=false
 INSTALL_ISOCHRONE_RELEASE=true
 # will install latest isochrone snapshot from nexus repository
 INSTALL_ISOCHRONE_SNAPSHOT=true
-INSTALL_PROJECT_PSIPROBE=true
+INSTALL_PROJECT_PSIPROBE=false
 
 ############################
 # Ext. argument handling   #
@@ -162,8 +162,8 @@ POSTGRESQL_SERVICE_NAME="postgresql"
 POSTGRESQL_SHORT_VERSION=""
 POSTGRESQL_VERSION=""
 PGROUTING_GIT_URL="https://github.com/pgRouting/pgrouting.git"
-#PGROUTING_VERSION="auto"      # activate to install from repository
-PGROUTING_VERSION="2.0.0"    # activate to install from source
+PGROUTING_VERSION="auto"      # activate to install from repository
+#PGROUTING_VERSION="2.0.0"    # activate to install from source
 REPO_ELGIS="none"
 REPO_EPEL="none"
 REPO_POSTGRESQL=""            # will be set later (depending on architecture)