diff --git a/Projects/AthSimulation/build_env.sh b/Projects/AthSimulation/build_env.sh
index 01a4d8cd1aaa0eb8740754f441251e9a685a4efd..64433d4805f6c4448b10a1e6bb681dc2a00b747a 100644
--- a/Projects/AthSimulation/build_env.sh
+++ b/Projects/AthSimulation/build_env.sh
@@ -59,14 +59,6 @@ env_setup() {
     echo "Setting up AthSimulationExternals from: ${extDir}"
     source ${extDir}/*/setup.sh
 
-    # Get the "platform name" from the directory created by the AthSimulationExternals
-    # build:
-    platform=$(cd ${extDir};ls)
-
-    # Point to Gaudi:
-    export GAUDI_ROOT=${BUILDDIR}/install/GAUDI/${version}/InstallArea/${platform}
-    echo "Taking Gaudi from: ${GAUDI_ROOT}"
-
     cd $startdir
 }
 
diff --git a/Projects/AthSimulation/build_externals.sh b/Projects/AthSimulation/build_externals.sh
index 3de9f169edf3f2581d559c36cd2a990f03a6270c..081d69019849641fddf7a88731ef2a3f2d792066 100755
--- a/Projects/AthSimulation/build_externals.sh
+++ b/Projects/AthSimulation/build_externals.sh
@@ -135,28 +135,6 @@ ${scriptsdir}/build_atlasexternals.sh \
     -p AthSimulationExternals ${RPMOPTIONS} -t ${BUILDTYPE} \
     ${EXTRACMAKE[@]/#/-x } -v ${version} || ((ERROR_COUNT++))
 
-# Get the "platform name" from the directory created by the AthSimulationExternals
-# build:
-platform=$(cd ${BUILDDIR}/install/AthSimulationExternals/${version}/InstallArea;ls)
-
-# Read in the tag/branch to use for Gaudi:
-GaudiVersion=$(awk '/^GaudiVersion/{print $3}' ${thisdir}/externals.txt)
-
-# Check out Gaudi from the right branch/tag:
-${scriptsdir}/checkout_Gaudi.sh \
-    -t ${GaudiVersion} \
-    -s ${BUILDDIR}/src/GAUDI 2>&1 | tee ${BUILDDIR}/src/checkout.GAUDI.log
-
-# Build Gaudi:
-${scriptsdir}/build_Gaudi.sh \
-    -s ${BUILDDIR}/src/GAUDI \
-    -b ${BUILDDIR}/build/GAUDI \
-    -i ${BUILDDIR}/install \
-    -e ${BUILDDIR}/install/AthSimulationExternals/${version}/InstallArea/${platform} \
-    -v ${version} \
-    -p AthSimulationExternals -f ${platform} ${EXTRACMAKE[@]/#/-x } \
-    ${RPMOPTIONS} -t ${BUILDTYPE} || ((ERROR_COUNT++))
-
 # Exit with the error count taken into account.
 if [ ${ERROR_COUNT} -ne 0 ]; then
     echo "AthSimulation externals build encountered ${ERROR_COUNT} error(s)"
diff --git a/Projects/AthSimulation/externals.txt b/Projects/AthSimulation/externals.txt
index c5d54221cff50cbced770496eb6c3c1bc8699d5f..58f3ac05b566f8e3035e9560427cfa993ce5e088 100644
--- a/Projects/AthSimulation/externals.txt
+++ b/Projects/AthSimulation/externals.txt
@@ -6,7 +6,4 @@
 # forbidden.
 
 # The version of atlas/atlasexternals to use:
-AthSimulationExternalsVersion = 2.0.85
-
-# The version of atlas/Gaudi to use:
-GaudiVersion = v34r1.001
+AthSimulationExternalsVersion = 2.0.86