diff --git a/scripts/cspull.py b/scripts/cspull.py
index 47a310e..801ec78 100755
--- a/scripts/cspull.py
+++ b/scripts/cspull.py
@@ -98,7 +98,7 @@ class cspull(GApplication):
 			pars.append(GPar("outfile","f","a","pull.dat","","","Output file name"))
 			pars.append(GPar("ntrials","i","a","10","","","Number of trials"))
 			pars.append(GPar("caldb","s","a","$GAMMALIB/share/caldb/cta","","","Calibration database"))
-			pars.append(GPar("irf","s","a","kb_E_50h_v3","","","Instrument response function"))
+			pars.append(GPar("irf","s","a","cta_dummy_irf","","","Instrument response function"))
 			pars.append(GPar("ra","r","a","83.6331","0","360","RA of pointing (deg)"))
 			pars.append(GPar("dec","r","a","22.0145","-90","90","Dec of pointing (deg)"))
 			pars.append(GPar("emin","r","a","0.1","0.0","","Lower energy limit (TeV)"))
diff --git a/scripts/cssens.py b/scripts/cssens.py
index 8ab3ba2..dcbc87d 100755
--- a/scripts/cssens.py
+++ b/scripts/cssens.py
@@ -107,10 +107,10 @@ class cssens(GApplication):
 			pars = GPars()
 			pars.append(GPar("outfile","f","h","sensitivity.dat","","","Output file name"))
 			pars.append(GPar("caldb","s","a","$GAMMALIB/share/caldb/cta","","","Calibration database"))
-			pars.append(GPar("irf","s","a","kb_E_50h_v3","","","Instrument response function"))
+			pars.append(GPar("irf","s","a","cta_dummy_irf","","","Instrument response function"))
 			pars.append(GPar("type","s","a","point","","","Source model type (point/gauss/shell/disk)"))
 			pars.append(GPar("offset","r","a","0.0","0.0","","Source offset angle (deg)"))
-			pars.append(GPar("bkg","s","a","$GAMMALIB/share/models/bkg_kb_E_50h_v3.txt","","","Background model file function (none=power law for E)"))
+			pars.append(GPar("bkg","s","a","$GAMMALIB/share/models/bkg_dummy.txt","","","Background model file function (none=power law for E)"))
 			pars.append(GPar("duration","r","a","180000.0","","","Effective exposure time (s)"))
 			pars.append(GPar("rad","r","a","5.0","","","Radius of ROI (deg)"))
 			pars.append(GPar("enumbins","i","h","0","","","Number of energy bins (0=unbinned)"))
diff --git a/scripts/cstsdist.py b/scripts/cstsdist.py
index 225f0a4..eb64f11 100755
--- a/scripts/cstsdist.py
+++ b/scripts/cstsdist.py
@@ -98,11 +98,11 @@ class cstsdist(GApplication):
 			pars.append(GPar("outfile","f","h","ts.dat","","","Output file name"))
 			pars.append(GPar("ntrials","i","a","10","","","Number of trials"))
 			pars.append(GPar("caldb","s","a","$GAMMALIB/share/caldb/cta","","","Calibration database"))
-			pars.append(GPar("irf","s","a","kb_E_50h_v3","","","Instrument response function"))
+			pars.append(GPar("irf","s","a","cta_dummy_irf","","","Instrument response function"))
 			pars.append(GPar("type","s","a","point","","","Source model type (point/gauss/shell/disk)"))
 			pars.append(GPar("index","r","h","-2.48","","","Spectral index"))
 			pars.append(GPar("offset","r","a","0.0","0.0","","Source offset angle (deg)"))
-			pars.append(GPar("bkg","s","a","$GAMMALIB/share/models/bkg_kb_E_50h_v3.txt","","","Background model file function (none=power law for E)"))
+			pars.append(GPar("bkg","s","a","$GAMMALIB/share/models/bkg_dummy.txt","","","Background model file function (none=power law for E)"))
 			pars.append(GPar("emin","r","a","0.1","0.0","","Lower energy limit (TeV)"))
 			pars.append(GPar("emax","r","a","100.0","0.0","","Upper energy limit (TeV)"))
 			pars.append(GPar("enumbins","i","a","0","","","Number of energy bins (0=unbinned)"))