diff --git a/scripts/upgrade b/scripts/upgrade
index 156987b..8d7a7e1 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -94,9 +94,6 @@ fi
 #=================================================
 
 # Backup config, plugins and themes and delete previous files
-ynh_keep_if_no_upgrade themes/admin/* 
-ynh_keep_if_no_upgrade themes/question/* 
-ynh_keep_if_no_upgrade themes/survey/* 
 ynh_keep_if_no_upgrade plugins/*
 ynh_keep application/config/config.php
 ynh_keep upload