diff --git a/Control/CalypsoExample/Simulation/scripts/faser_simulate.py b/Control/CalypsoExample/Simulation/scripts/faser_simulate.py
index 1c8320245e6ecfa61857a6d60d04d1cf8d538d54..09c61de889fefd45736504facfdfdf934790a44c 100755
--- a/Control/CalypsoExample/Simulation/scripts/faser_simulate.py
+++ b/Control/CalypsoExample/Simulation/scripts/faser_simulate.py
@@ -148,7 +148,7 @@ if __name__ == '__main__':
 #
     if args.geom == "TI12MC":
         # 2022 TI12 geometry
-        ConfigFlags.GeoModel.FaserVersion = "FASERNU-03"  # Geometry set-up
+        ConfigFlags.GeoModel.FaserVersion = "FASERNU-04"  # Geometry set-up
         ConfigFlags.IOVDb.GlobalTag = "OFLCOND-FASER-03"  # Conditions set-up
         # TI12 detectors
         detectors = ['Veto', 'VetoNu', 'Preshower', 'FaserSCT', 'Ecal', 
@@ -156,7 +156,7 @@ if __name__ == '__main__':
 
     elif args.geom == "TestBeamMC":
         # Define 2021 test beam geometry
-        ConfigFlags.GeoModel.FaserVersion = "FASER-TB00"   # Geometry set-up
+        ConfigFlags.GeoModel.FaserVersion = "FASER-TB01"   # Geometry set-up
         ConfigFlags.IOVDb.GlobalTag = "OFLCOND-FASER-TB00" # Conditions set-up
         # Testbeam detectors (trigger layers are actually veto counters)
         detectors = ['Veto', 'Preshower', 'FaserSCT', 'Ecal']