diff --git a/scripts/upgrade b/scripts/upgrade
index d37ab1d..fcd7c41 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -82,6 +82,8 @@ if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
 	ynh_script_progression --message="Upgrading source files..." --weight=1
 
+	ynh_secure_remove --file="$final_path/app"
+	ynh_secure_remove --file="$final_path/public/assets"
 	# Download, check integrity, uncompress and patch the source from app.src
 	ynh_setup_source --dest_dir="$final_path"
 fi