diff --git a/runscripts/jenkins/setup-environment.sh b/runscripts/jenkins/setup-environment.sh
index c8a9fb914..96d7f764c 100644
--- a/runscripts/jenkins/setup-environment.sh
+++ b/runscripts/jenkins/setup-environment.sh
@@ -1,14 +1,23 @@
 set -e
 
+# Load newer Git and Java for nextflow 
+module load system git java/21.0.4
+
+# Set PYTHONPATH to root of repo so imports work
 export PYTHONPATH=$PWD
-module load wcEcoli/python3 java/18.0.2
+# Use one thread for OpenBLAS (better performance and reproducibility)
+export OMP_NUM_THREADS=1
 
-export PATH="${GROUP_HOME}/pyenv/bin:${PATH}"
-eval "$(pyenv init -)"
-eval "$(pyenv virtualenv-init -)"
+# Initialize pyenv
+export PYENV_ROOT="${GROUP_HOME}/pyenv"
+if [ -d "${PYENV_ROOT}" ]; then
+    export PATH="${PYENV_ROOT}/bin:${PATH}"
+    eval "$(pyenv init -)"
+    eval "$(pyenv virtualenv-init -)"
+fi
 
 ### Edit this line to make this branch use another pyenv
-pyenv local viv-ecoli
+pyenv local vEcoli
 pyenv activate
 
 make clean compile