diff --git a/Jenkinsfile b/Jenkinsfile
index da21cc0ad..9275c9920 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -14,13 +14,26 @@ def jobMatrix(String prefix, List specs, Closure callback) {
         try {
           deleteDir()
           checkout scm
-
+          
+          sh """\
+            echo "export SIMPATH=\${SIMPATH_PREFIX}${spec.fairsoft}" >> Dart.cfg
+            echo "export FAIRSOFT_VERSION=${spec.fairsoft}" >> Dart.cfg
+          """
+          if ((spec.os == 'Debian8') && (spec.compiler == 'gcc8.1')) {
+            sh '''\
+              echo "source /etc/profile.d/modules.sh" >> Dart.cfg
+              echo "module use /cvmfs/it.gsi.de/modulefiles" >> Dart.cfg
+              echo "module load compiler/gcc/8" >> Dart.cfg
+            '''
+          }
           sh '''\
             echo "export BUILDDIR=$PWD/build" >> Dart.cfg
             echo "export SOURCEDIR=$PWD" >> Dart.cfg
-            echo "export PATH=$SIMPATH/bin:$PATH" >> Dart.cfg
+            echo "export PATH=\\\$SIMPATH/bin:\\\$PATH" >> Dart.cfg
             echo "export GIT_BRANCH=$JOB_BASE_NAME" >> Dart.cfg
+            echo "echo \\\$PATH" >> Dart.cfg
           '''
+          sh 'cat Dart.cfg'
 
           callback.call(spec, label)
 
@@ -44,14 +57,14 @@ pipeline{
       steps{
         script {
           def build_jobs = jobMatrix('alfa-ci/build', [
-            [os: 'Debian8',    arch: 'x86_64', compiler: 'gcc4.9',         fairsoft: 'may18'],
-            [os: 'MacOS10.13', arch: 'x86_64', compiler: 'AppleLLVM9.0.0', fairsoft: 'may18'],
+            [os: 'Debian8',    arch: 'x86_64', compiler: 'gcc8.1',          fairsoft: 'fairmq_dev'],
+            //[os: 'MacOS10.13', arch: 'x86_64', compiler: 'AppleLLVM10.0.0', fairsoft: 'may18'],
           ]) { spec, label ->
             sh './Dart.sh alfa_ci Dart.cfg'
           }
 
           def profile_jobs = jobMatrix('alfa-ci/codecov', [
-            [os: 'Debian8',    arch: 'x86_64', compiler: 'gcc4.9',         fairsoft: 'may18'],
+            [os: 'Debian8',    arch: 'x86_64', compiler: 'gcc8.1',          fairsoft: 'fairmq_dev'],
           ]) { spec, label ->
             withCredentials([string(credentialsId: 'fairmq_codecov_token', variable: 'CODECOV_TOKEN')]) {
               sh './Dart.sh codecov Dart.cfg'