-virtualenv "$WORKSPACE/.virtualenvs/jjb"
-# shellcheck source=./.virtualenvs/jjb/bin/activate disable=SC1091
-source "$WORKSPACE/.virtualenvs/jjb/bin/activate"
-pip install --upgrade pip
-pip install --upgrade "jenkins-job-builder==$JJB_VERSION"
-pip freeze
+virtualenv "/tmp/v/jjb"
+# shellcheck source=/tmp/v/jjb/bin/activate disable=SC1091
+source "/tmp/v/jjb/bin/activate"
+pip install --quiet --upgrade pip
+pip install --quiet --upgrade pipdeptree
+pip install --quiet --upgrade "jenkins-job-builder==$JJB_VERSION"
+
+echo "----> Pip Dependency Tree"
+pipdeptree