diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 4b0fad4ffc..b35e70096d 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,7 +8,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        STACK: ['/cvmfs/sw.hsf.org/key4hep/setup.sh',
+        STACK: [
+                # '/cvmfs/sw.hsf.org/key4hep/setup.sh', #temporarily disable for developing edm4hep v1 code that can only be set up from nightlies currently
                 '/cvmfs/sw-nightlies.hsf.org/key4hep/setup.sh']
         OS: ['alma9',
              'ubuntu22']
@@ -52,4 +53,6 @@ jobs:
         docker exec CI_container /bin/bash -c 'cd ./Package; \
           source ${{ matrix.STACK }}; \
           source ./setup.sh; \
-          fccanalysis run examples/FCCee/higgs/mH-recoil/mumu/analysis_stage1.py --output myoutput.root --files-list root://eospublic.cern.ch//eos/experiment/fcc/ee/generation/DelphesEvents/spring2021/IDEA/p8_ee_Zbb_ecm91_EvtGen_Bc2TauNuTAUHADNU/events_131527278.root'
+          # fccanalysis run examples/FCCee/higgs/mH-recoil/mumu/analysis_stage1.py --output myoutput.root --files-list root://eospublic.cern.ch//eos/experiment/fcc/ee/generation/DelphesEvents/spring2021/IDEA/p8_ee_Zbb_ecm91_EvtGen_Bc2TauNuTAUHADNU/events_131527278.root'
+          #temporarily switch to a different file, produced with nightlies, need edm4hep v1 
+          fccanalysis run examples/FCCee/higgs/mH-recoil/mumu/analysis_stage1.py --output myoutput.root --files-list root://eospublic.cern.ch//eos/experiment/fcc/hh/tutorials/edm4hep_tutorial_data/p8_ee_ZH_ecm240.root'