diff --git a/conf/event-generator/simulation.yml b/conf/event-generator/simulation.yml
index b464dcedaef8386af931bbb5c5751b9e8365d09c..b67874a2379638d0b1b27bf8d6b16c2605394c1e 100644
--- a/conf/event-generator/simulation.yml
+++ b/conf/event-generator/simulation.yml
@@ -1,14 +1,8 @@
 simulation:
-  #dynamics_grid_filename: icon_grid_0010_R02B04_G.nc
-  #radiation_grid_filename: icon_grid_0009_R02B03_R.nc
-#  dynamics_grid_filename: icon_grid_0024_R02B06_G.nc
-#  radiation_grid_filename: icon_grid_0023_R02B05_R.nc
-  dynamics_grid_filename: icon_grid_0016_R02B06_G.nc
-  radiation_grid_filename: icon_grid_0015_R02B05_R.nc
+  dynamics_grid_filename: icon_grid_0010_R02B04_G.nc
+  radiation_grid_filename: icon_grid_0009_R02B03_R.nc
 
-#  external_parameters_filename: icon_extpar_0010_R02B04_G.nc
-#  external_parameters_filename: icon_extpar_0024_R02B06_G_20200917_tiles.nc
-  external_parameters_filename: icon_extpar_0016_R02B06_G_20131206.nc
+  external_parameters_filename: icon_extpar_0010_R02B04_G.nc
   date_format: '%Y-%m-%dT%H:%M:%SZ'
   namelist_paths:
     # Path to the namelists