diff --git a/scripts/upgrade b/scripts/upgrade
index 462c2a6..dd6b8e9 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -95,7 +95,7 @@ then
 	ynh_script_progression --message="Upgrading source files..." --weight=4
 
 	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$final_path"
+	ynh_setup_source --dest_dir="$final_path" --keep="$final_path/.env $final_path/public/dist/user.css"
 fi
 
 chmod 750 "$final_path"
@@ -139,9 +139,9 @@ ynh_install_composer --install_args="--ignore-platform-reqs"
 ynh_script_progression --message="Setting $app config..."
 
 # Setup application config
-ynh_add_config --template="../conf/.env.example" --destination="$final_path/.env"
+#ynh_add_config --template="../conf/.env.example" --destination="$final_path/.env"
 
-ynh_add_config --template="../conf/user.css.example" --destination="$final_path/public/dist/user.css"
+#ynh_add_config --template="../conf/user.css.example" --destination="$final_path/public/dist/user.css"
 
 ynh_replace_string --match_string="\$ffmpeg = FFMpeg::create();" --replace_string="\$ffmpeg = FFMpeg::create(array(\
         'ffmpeg.binaries'  => '/usr/bin/ffmpeg',\
@@ -153,7 +153,7 @@ ynh_replace_string --match_string="\$ffmpeg = FFMpeg::create();" --replace_strin
 #=================================================
 ynh_script_progression --message="Upgrading $app source files..." --weight=4
 
-ynh_exec_warn_less ynh_composer_exec --commands=\"dump-autoload\"
+ynh_exec_warn_less ynh_composer_exec --commands=dump-autoload
 
 pushd $final_path
 	php$phpversion artisan key:generate