diff --git a/.github/workflows/run_ec2_pcluster.yaml b/.github/workflows/run_ec2_pcluster.yaml
index 538fd63..07af019 100644
--- a/.github/workflows/run_ec2_pcluster.yaml
+++ b/.github/workflows/run_ec2_pcluster.yaml
@@ -74,7 +74,7 @@ jobs:
           cat <<EOF > setup.sh
           #!/bin/bash
 
-          echo "Loading ufs-bundle environment using spack-stack-1.4.0"
+          echo "Loading ufs-bundle environment using spack-stack-1.5.0"
 
           ulimit -s unlimited
           ulimit -c unlimited
@@ -84,13 +84,12 @@ jobs:
 
           source /opt/intel/oneapi/compiler/2022.1.0/env/vars.sh
 
-          module use /mnt/experiments-efs/skylab-v5/spack-stack-1.4.0/envs/unified-env-v2/install/modulefiles/Core
+          module use /mnt/experiments-efs/skylab-v6/spack-stack-1.5.0/envs/unified-env/install/modulefiles/Core
           module load stack-intel/2022.1.0
           module load stack-intel-oneapi-mpi/2021.6.0
           module load stack-python/3.10.8
 
-          module load jedi-ufs-env/unified-dev
-          module unload crtm
+          module load jedi-ufs-env/1.0.0
 
           module li