diff --git a/.github/workflows/generate-reference-data.yml b/.github/workflows/generate-reference-data.yml
index 53f9e2f95..5eb8d1fac 100644
--- a/.github/workflows/generate-reference-data.yml
+++ b/.github/workflows/generate-reference-data.yml
@@ -30,7 +30,7 @@ jobs:
     - uses: ursg/gcc-problem-matcher@master
     - name: Compile vlasiator (Testpackage build)
       run: |
-        srun -M carrington --job-name CI_ref_tp_compile --interactive --nodes=1 -n 1 -c 16 --mem=40G -p short -t 0:10:0 bash -c 'module purge; module load GCC/11.2.0; module load OpenMPI/4.1.1-GCC-11.2.0 ; module load PMIx/4.1.0-GCCcore-11.2.0; module load PAPI/6.0.0.1-GCCcore-11.2.0; export VLASIATOR_ARCH=carrington_gcc_openmpi; make -j 16 testpackage; sleep 10s'
+        srun -M carrington --job-name CI_ref_tp_compile --interactive --nodes=1 -n 1 -c 16 --mem=40G -p short -t 0:10:0 bash -c 'module purge; module load GCC/13.2.0; module load OpenMPI/4.1.6-GCC-13.2.0 ; module load PMIx/4.2.6-GCCcore-13.2.0; module load PAPI/7.1.0-GCCcore-13.2.0; export VLASIATOR_ARCH=carrington_gcc_openmpi; make -j 16 testpackage; sleep 10s'
     - name: Make sure the output binary is visible in lustre
       uses: nick-fields/retry@v3
       with:
@@ -59,7 +59,7 @@ jobs:
     - name: Checkout source
       uses: actions/checkout@v4
       with:
-        submodules: true
+        submodules: false
     - name: Download testpackage binary
       uses: actions/download-artifact@v4
       with: