diff --git a/506xxx/506101/mc.aMCH7EG_VBF_Htautauh30h20.py b/506xxx/506101/mc.aMCH7EG_VBF_Htautauh30h20.py
index e9abde8e8ff95d7d4adc8ec83387431d5c742972..e1a4c579fe02ae653634cacfb1a48bb5d0c2459b 100644
--- a/506xxx/506101/mc.aMCH7EG_VBF_Htautauh30h20.py
+++ b/506xxx/506101/mc.aMCH7EG_VBF_Htautauh30h20.py
@@ -71,7 +71,7 @@ else:
 settings= {'ptj'           : 10,
           'jetradius'     : 1.0,
           'maxjetflavor'  : 5,
-          'parton_shower' :'PYTHIA8',
+          'parton_shower' :'HERWIGPP',
           'mll_sf'        : 10.0,
           'muR_ref_fixed' : 125.0,
           'muF1_ref_fixed': 125.0,
diff --git a/506xxx/506102/mc.aMCH7EG_VBF_Htautaul13l7.py b/506xxx/506102/mc.aMCH7EG_VBF_Htautaul13l7.py
index f584a3aea02b4495378d180ea364f89db402ab2b..1ef11e0342230e4a33aea0cce1a0358bb0bef0e5 100644
--- a/506xxx/506102/mc.aMCH7EG_VBF_Htautaul13l7.py
+++ b/506xxx/506102/mc.aMCH7EG_VBF_Htautaul13l7.py
@@ -71,7 +71,7 @@ else:
 settings= {'ptj'           : 10,
           'jetradius'     : 1.0,
           'maxjetflavor'  : 5,
-          'parton_shower' :'PYTHIA8',
+          'parton_shower' :'HERWIGPP',
           'mll_sf'        : 10.0,
           'muR_ref_fixed' : 125.0,
           'muF1_ref_fixed': 125.0,
diff --git a/506xxx/506103/mc.aMCH7EG_VBF_Htautaulp15hm20.py b/506xxx/506103/mc.aMCH7EG_VBF_Htautaulp15hm20.py
index c5e566446bdb15c7bc985f2262c9494e2e861e0c..82d3146d958a92b0b3bf42383b921aa91ff2947e 100644
--- a/506xxx/506103/mc.aMCH7EG_VBF_Htautaulp15hm20.py
+++ b/506xxx/506103/mc.aMCH7EG_VBF_Htautaulp15hm20.py
@@ -71,7 +71,7 @@ else:
 settings= {'ptj'           : 10,
           'jetradius'     : 1.0,
           'maxjetflavor'  : 5,
-          'parton_shower' :'PYTHIA8',
+          'parton_shower' :'HERWIGPP',
           'mll_sf'        : 10.0,
           'muR_ref_fixed' : 125.0,
           'muF1_ref_fixed': 125.0,
diff --git a/506xxx/506104/mc.aMCH7EG_VBF_Htt_tautaulm15hp20.py b/506xxx/506104/mc.aMCH7EG_VBF_Htt_tautaulm15hp20.py
index c23fd42ac4ccb2204dbeaaba7e6914ea2d69624e..4748dc3885297b8ac4a6bd4e46b586cc6bfcea0d 100644
--- a/506xxx/506104/mc.aMCH7EG_VBF_Htt_tautaulm15hp20.py
+++ b/506xxx/506104/mc.aMCH7EG_VBF_Htt_tautaulm15hp20.py
@@ -71,7 +71,7 @@ else:
 settings= {'ptj'           : 10,
           'jetradius'     : 1.0,
           'maxjetflavor'  : 5,
-          'parton_shower' :'PYTHIA8',
+          'parton_shower' :'HERWIGPP',
           'mll_sf'        : 10.0,
           'muR_ref_fixed' : 125.0,
           'muF1_ref_fixed': 125.0,